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uni-
pref.（前缀）

Single; one:
单一；一：
unicycle.
单轮脚踏车

语源

Latin ūni-
拉丁语 ūni-
from ūnus [one] * see oi-no-
源自 ūnus [一] *参见 oi-no-

uni-

combining form

consisting of, relating to, or having only one

⇒ unilateral

⇒ unisexual

Origin

from Latin ūnus one

uni-

Word Origin

a combining form occurring in loanwords from Latin (universe), used, with the meaning “one,” in the formation of compound words (unicycle).

Origin

< Latin ūni- combining form of ūnus one; see -i-

Related Words

unicorn
unialgal
uniaxial
unibrow
unicameral
unicellular

uni-a word element meaning 'one', 'single', as in unisexual.

[Latin, combining form of ūnus one]

uni-
prefix

ETYMOLOGY Latin, from unus — more at one

: one : single
unicellular

uni-

/ˈjuːnɪ/

combining form

one; having or consisting of one 表示“单”、“一”：: unicellular

unicycle.

词源

from Latin unus 'one'.

uni-|ˈjuːnɪ|repr. L. ūni- combining form of ūnus one, a single, forming the first element in a number of words with the sense ‘having, composed or consisting of, characterized by, etc., one (thing specified by the second element)’. The Latin prefix ūni- (before a vowel ūn-) was employed before or during the classical period in only a few terms, as ūnicolor, ūnigena, ūnimanus, ūniversus, ūnanimus, ūnoculus adjs.; ūniversitās, ūnanimitās ns. In the post-classical and later language the prefix had a more extensive use, although the recorded instances are not very numerous; they are chiefly adjectival forms, as ūnicalamus, ūnicaulis, ūnicornis, ūniformis, ūnigenitus, ūnijugus, ūniversālis, ūnivocus, etc., ūnanimis. The earliest appearance of the element in English is naturally in words directly adopted from French or Latin, as unanimity, unicorn, uniform a., unison, universal a., universe, university, etc. In more general use it first appears in words adapted from Latin compounds or modelled on these, as univocate (1432–50), univocal (1541), unigenit (a 1568); but it was not until the 17th c. that the prefix obtained much currency, when in addition to normal combs. as unicolorate, unicornous, uniparous, unireme, univalve, etc., such occasional formations as unifoil, unifold, unipresence, unipresent were coined on analogy with other numerical prefixes. In the 18th c. a comparatively small number of new compounds were adapted or formed, as uniangulate, unicapsular, unigenous, unilocular, unisoil, etc. In the 19th c. the element came to be freely employed in the formation of scientific and technical terms, especially in Bot. and Zool., freq. after mod.L. formations as unicapsularis, -cellularis, -foliatus, -labiatus, -lobatus, -nervatus, -nervus, -ovulatus, -sexus, or adapted from F. terms as unicursal, -cuspidé, -lobé, -nerve. The second element in these compounds is thus naturally of Latin origin, but after the prefix had acquired a more extensive use it was not infrequently combined with English forms or words, and has been used occasionally in place of the Greek equivalent mono-. (The use with English participial forms in -ed was not fully established until the 19th c.)In scientific works the prefix is sometimes represented by the Arabic numeral, as 1-bracteate, etc.The older and more important combinations will be found in this Dict. in their alphabetical place as main words.1. Forming adjectives with the general sense ‘having, provided with, composed or consisting of, or characterized by one (thing specified or connoted by the second element)’. Many of these compounds are self-explanatory or are sufficiently explained by the quots., and in such cases no definition is added. uniˈalgal Bot. (see quot. 1914); uniˈangulate Bot.; uniareˈagerous [-gerous] Conch., having a single ‘area’; uniarˈticulate Ent. and Zool., having a single joint; uniauˈriculate(d Zool., having a single auricle or auriculate process; uniˈbasal, uniˈbracteate, -ˈbracteolate; uniˈcentral (see quots. and cf. monocentric mono- 1); ˌuniconsoˈnantal; uniˈcorneal Zool., of an ocellus: having a single cornea; uniˈcostate Bot. and Zool., having one rib; unicuiˈrassed = unipeltate; uniˈcuspid Zool. = unicuspidate s.v. uni- 1 a; uniˈcuspidate, ending in one cusp or point; uniˈdentate(d Zool. and Bot., having a single tooth-like serration; unidenˈticulate Zool. and Bot., having but one denticulation; unidiˈmensional, of one dimension; unieˈquivalent = univalent a.; ˈunifaced, of a coin (see quot.); uniˈfacial, (a) Zool.; (b) Archæol., of a flint tool, etc.: (worked) on one side only; cf. bifacial a.; also absol. as n.; uniˈflagellate Zool., of an infusorian: having but one flagellum; uniˈflorate, -ˈflowered, = uniflorous a.; uniˈfoliate, -ˈfoliolate, of leaves, etc.: consisting of one leaflet; of plants: characterized by or bearing leaves of this kind; uniˈglobular, consisting of a single globular part; in quot. absol.; uniˈguttulate, marked with one drop-like spot; uniˈjugate Bot.; uniˈlamellar, uniˈlaminar, having one lamella, lamina, or layer; uniˈlinear, (a) Math., affecting or involving but one line (see quot. 1851); (b) of an evolution, a theory, etc.: having a single line of development or progression; uniˈlobar, -ˈlobate, -lobed; uniˈlobular Path., of cirrhosis: characterized by hypertrophy of single lobules; hypertrophic; uniˈmacular, marked with a single spot; uniˈmedial, coming through a single medium; unimodular Math., having a determinant whose value is 1; uniˈmultiplex; uniˈmuscular Zool.; uniˈnervate, -nerved; uniˈovular, -ˈovulate = monovular a.; uniˈpeltate Zool. (see 2); uniˈpotent Med. and Biol., of a cell: capable of giving rise to only one type of cell or tissue; uniˈradiate(d; uniraˈmose, -ˈramous, having or consisting of single ramus or branch; ˌunisegˈmental; uniˈseptate Bot.; ˈunisexed, consisting of members of one sex; unisoˈcietary, consisting of or characterized by one society or social order; uniˈspiculate, having but one spicule; unispiˈnose, having or bearing one spine; uniˈsulcate, having one groove or furrow; uniteleˈgraphic, pertaining to a telegraph capable of being used by only one person at a time; unitenˈtacular; uniˈternary Cryst. (see quot.); unituˈberculate; uniunˈguiculate, having one unguis or claw; uniˈvallate Archæol., having a single encircling rampart; cf. multivallate a.; uniˈvariant Physical Chem., of a chemical system: having one degree of freedom (cf. freedom 10 b); uniˈvariate Statistics, involving or having one variate or variable; uniˈvocalized, converted into a single voiced sound.Various terms having little or no real currency have appeared in Dicts., etc., as unicarinated, -lineated (1840), uniclinal (1879), unicarinate, -foliar (1888), uniforate, -foveate, -lamellate, -laminate, -loculate, -sepalous, -serrate, -serrulate, -spiral (1891); etc.1914G. M. Smith in Trans. Wisconsin Acad. XVII. 1173 According to the usage of some authors, a pure culture is one that contains only one algal species; others under⁓stand it to be a culture of single algal species that is also free from other organisms... To differentiate between the two I propose the term *unialgal culture to designate one which contains but a single species of alga, but which may contain other organisms.1946E. G. Pringsheim Pure Cultures of Algae vi. 79 The separation of the purification process into two stages, the first involving the preparation of unialgal or species-pure cultures, the second that of bacteria-free or absolutely pure cultures, is very helpful.1979Nature 27 Sept. 300/2 This infective filtrate caused the destruction of cultures of four unialgal strains of M[icromonas] pusilla.1777S. Robson Brit. Flora 4 *Uniangulate, having one angle, as in Stinking Sedge.1850W. King Permian Fossils 142 Genus Ismenia. Diagnosis.—*Uni-areagerous... Area, both halves oblique to the hinge-margin, and to each other.1819G. Samouelle Entomol. Compend. 99 Legs bifid, the last joint of the four anterior pairs..*uniarticulate.1856W. Clark Van der Hoeven's Zool. I. 300 Tarsi uniarticulate, with single arcuate claw.1835Kirby Hab. & Inst. Anim. II. xxii. 416 The Cæcilia, or blind serpent, too, is almost *uniauriculate.1859Agassiz Ess. Classification 338 Gasteropoda (Uniauriculate animals). Membranous heart with one auricle.1839Penny Cycl. XIV. 335/2 M. de Blainville divides the genus into three sections..; 2, consisting of *uniauriculated species (Malleus normalis).1890Amer. Naturalist May 406 *Unibasal pectoral and ventral fins.1870Hooker Stud. Flora 387 Bog Asphodel,..pedicel *1-bracteate.Ibid., Eriocauloneæ... Flowers minute..in involucrate heads, *1-bracteolate.1864Spencer Biol. I. §50. 137 Central development may be distinguished into *unicentral and multicentral, according as the product of the original germ develops symmetrically round one centre, or..in subordination to many centres.1875Dowden Shakespere 61 Assured that the organism is living, he fearlessly lets it develope itself in its proper mode, unicentral (as Macbeth) or multicentral (as King Lear).1902Brit. Med. Jrnl. No. 2154. 908 Cancers either started from one centre (unicentral or monocentral) or from many centres (multicentral or plurocentral).1948D. Diringer Alphabet ii. 60 The phonograms were bi-consonantal..or *uni-consonantal.1884Sedgwick & Heathcote tr. Claus' Zool. 538 The *unicorneal ocelli are principally present in larval life.1849Balfour Man. Bot. 72 Reticulated Venation. i. *Unicostate... A single rib or costa in the middle (midrib).1852Dana Crust. i. 335 Hand..faintly uni-costate towards lower part.1842Penny Cycl. XXIII. 82/1 *Unicuirassed Stomapods.1894Gould Dict. Med. 1572/1 *Unicuspid.1948A. L. Rand Mammals Eastern Rockies 54 The skull when viewed from the side appears to hold only 3 unicuspid teeth.1977Lancet 17 Sept. 610/2 Surgical exploration..revealed a unicuspid aortic valve with a ‘horseshoe’ appearance.1883Flower in Encycl. Brit. XV. 403/2 The *unicuspidate upper and lower front incisors.1819G. Samouelle Entomol. Compend. 222 Antennæ with their internal base *unidentate.1833Hooker in Smith's Eng. Flora V. i. 124 The lower [lobes of the leaves]..frequently unidentate.1856W. Clark Van der Hoeven's Zool. I. 357 Mandibles small, narrow, unidentate or edentulous.1822J. Parkinson Outl. Oryctol. 201 Ancilla olivula: *unidentated at the base.1828Stark Elem. Nat. Hist. II. 266 Mandibles small, depressed, pointed and entire, or unidentated in the internal side.1887Trans. Royal Soc. Edin. XXXII. 637 Radula, two rows of teeth. 1 and 2, lateral teeth; 3, median tridenticulate; 5 and 4, central *unidenticulate.1883C. S. Peirce's Studies in Logic 156 Analogous reasoning would obviously apply to any portion of an *unidimensional continuum.1867Chambers' Encycl. IX. 537/1 Monad or *Uniequivalent Elements (or Monads), one atom of which in combination is equivalent to..one atom of hydrogen.1877Jewitt Half-hrs. among Eng. Antiq. 139 Many of the early coins are *unifaced, i.e. one side is plain, while the other bears the device.1846Dana Zooph. iv. (1848) 65 A species, which usually has polyps only on one surface,—*unifacial.1951N. & Q. Anthropol. (ed. 6) iv. 345 The distinction between tools made on cores and tools made on flakes or blades should be noted, and also that between tools flaked on both faces (so-called bifacials) and those flaked or retouched on one side only (unifacials).1957Jrnl. R. Anthropol. Inst. Jan. 119 A wide range of choppers and chopping tools, core, flake, bifacial and unifacial, is still in use.1981Science 4 Sept. 1115/2 Simple unifacial tools.1881Carpenter Microscope (ed. 6) xi. §419 Their simple *uniflagellate Monad (Monas Dallingeri).1860Mayne Expos. Lex. 1310 Uniflorus, Bot., having or bearing one flower: *uniflorate.1845–50A. H. Lincoln Lect. Bot. App. 27 Pl. vii, Scape naked, *uni-flowered. Flower drooping, spathaceous.1849Craig s.v., *Unifoliate.1881Jrnl. Linn. Soc. XVIII. 291 These apparently unifoliate stems are long petioles.1866Treas. Bot. 1191/2 Unifoliate, *Unifoliolate, when a compound leaf consists of one leaflet only; as in the orange-tree.1872Oliver Elem. Bot. ii. 130 Common Barberry,..with fascicled unifoliolate leaves.1875Bennett & Dyer tr. Sachs' Bot. 823 As in Duchesne's unifoliolate Strawberry.1891Geol. Jrnl. XLVII. 6 The structure of the zoæcia and of the dorsal surface is the same as in those with shorter nodes, so that we seem to have a series from the *uniglobular.1887W. Phillips Brit. Discomycetes 13 Sporidia elliptic, obtuse, *uniguttulate.1849Balfour Man. Bot. 79 When a pinnate leaf has one pair of leaflets, it is *unijugate.1861Bentley Man. Bot. 168 The leaflets..are arranged along the sides of the rachis or common petiole in pairs, and according to their number, the leaf is said to be unijugate or one-paired,..bijugate, etc.1875Bennett & Dyer tr. Sachs' Bot. 315 A vein..is formed from the base towards the apex, dividing the *unilamellar lamina into right and left halves.1876Van Duyn tr. Wagner's Gen. Pathol. 466 In epithelial regeneration with *unilaminar epithelium.1851Sylvester in Lond. etc. Phil. Mag. Feb. 128 Accordingly this may be termed *unilinear-intersection contact, or more briefly, unilinear contact.1910Athenæum 12 Mar. 299 A worldwide unilinear evolution.1939Mind XLVIII. 369 It is an order in which the thoughts in the chains of reasoning are not linked in a unilinear, but in a ‘global’ fashion.1974tr. Wertheim's Evolution & Revolution i. 22 In Soviet Russia during the twenties..the issue of unilinear evolution also came in for serious discussion.1870Rolleston Anim. Life 29 Both the liver and the pulmonary organs [of the common ringed snake] are *unilobar, the left lung being merely represented by a rudimentary structure.1839–47Todd's Cycl. Anat. III. 310/1 In the Potoroo the left lung is *unilobate.1851G. F. Richardson Geol. 286 In the strata anterior to the lias, almost all the fishes had heterocercal or *unilobed tails.1897Allbutt's Syst. Med. IV. 170 In a less common variety [of cirrhosis of the liver] a finer network of new fibrous tissue tends to surround individual lobules (*unilobular).1859Todd's Cycl. Anat. V. [134]/1 The germinal vesicle is *unimacular in general in the small-yolked ova.1802–12Bentham Ration. Judic. Evid. (1827) III. 438 Constitutive of so many modifications or species of unoriginal evidence, we have *unimedial, bimedial, trimedial and so forth: in a word, multimedial evidence.1852J. J. Sylvester in Cambr. & Dublin Math. Jrnl. VII. 52 The linear-transformations are supposed to be always taken such that the modulus..is unity; or, as it may be phrased, the transformations are *uni-modular.1866Brande & Cox Dict. Sci., etc. II. 378/1 The determinant formed from the coefficients..is called the modulus of transformation, and when D is equal to unity the transformations are said to be unimodular.1973L. J. Tassie Physics Elementary Particles xi. 136 The group SU(3) is the group of all unimodular unitary 3 × 3 matrices.1816T. L. Peacock Headlong Hall ix, These thousand images, indeed, were but one; and yet the one was a thousand, a sort of *uni-multiplex phantasma.1835Kirby Hab. & Inst. Anim. I. viii. 237 The second [order of molluscans] is *Unimuscular, having only one such [attaching] muscle with one impression.1875Blake Zool. 241 If there be but one muscular impression on a valve, then it belongs to monomyary or unimuscular bivalve.1866Treas. Bot. 1191/2 *Uninervate,..one-ribbed.1891Nature XLIII. 454/1 The linear, *uninerved leaves characteristic of the..genus Asterophyllites.1904Brit. Med. Jrnl. 17 Dec. 1644 A chapter is devoted to this subject [i.e. polysomatous terata] under the subheadings of *uniovular twins.1948‘M. Innes’ Night of Errors ix. 102 The two men were uncommonly like each other—a most striking family resemblance. But then I suppose they were what are called uniovular twins—or triplets, I should say.1965J. Pollitt Depression & its Treatment vii. 91 Kallman..showed that 96 per cent of uniovular twins of manic-depressive partners were similarly affected.1979G. Bourne Pregnancy (rev. ed.) xxx. 448 These babies will be identical, or uniovular twins since they have exactly the same genetic structure and the same chromosomes.1857A. Gray First Less. Bot. (1866) 235 *Uniovulate, having only one ovule.1845Encycl. Metrop. XXV. 2 This genus [Squilla] belongs to the *Unipeltate family of the Stomapodous order.1974Brit. Jrnl. Haematol. XXVI. 605 Stem cells are assayed by quantifying their progeny. In techniques measuring cells of one lineage this measurement reflects the number of *unipotent stem cells.1979Nature 18 Jan. 177/1 Such a cell is unipotent and exclusively committed to maturation along the erythroid pathway.1887Sollas in Encycl. Brit. XXII. 416/2 Monaxon *Uniradiate Type (stylus).—By the suppression of one of the rays of an oxea, an acuate spicule or stylus results.1828–32Webster (citing Encyc.), *Uniradiated, having one ray.1888Rolleston & Jackson Anim. Life 532 The first antenna is primitively *uniramose.1890Microsc. Sci. XXX. 109 Six pairs of (thoracic) appendages.., of which the first are long, slender, and uniramose.1877Huxley Anat. Inv. Anim. vi. 283 Entirely destitute of appendages, except a shorter anterior, *uniramous..pair of oar-like organs.1955*Uni-segmental [see multi-segmental s.v. multi- 1 b].1977Word 1972 XXVIII. 183 The data discussed there share with these data the fact of unisegmental modification.1866Treas. Bot. 1192/1 *Uniseptate, having but one septum or partition.1875Cooke Fungi 40 In other..species they [i.e. spores] are uniseptate.1856Putnam's Mag. Oct. 390/2 Besides, in England a bar-maid was highly respectable. How precious must she be in this *uni-sexed fair! [= California].1885L. Oliphant Sympneumata 286 The wise and sanguine..infer, both from the suffering and the capacities of present human nature, a future of new order in a *uni-societary world.1900Proc. Zool. Soc. 20 Feb. 138 Skeleton forming a rather regular reticulum of *unispiculate fibres.1828Stark Elem. Nat. Hist. II. 168 The Shrimp. Thorax behind, and on each side of the rostrum *unispinose.1852Dana Crust. i. 414 Emargination uni-spinose.1819G. Samouelle Entomol. Compend. 181 Thorax with a gibbous protuberance, *uni⁓sulcate above.1853Ure Dict. Arts I. 626 According to this improved plan of working, the wire of communication..may be considered as a public word road, or an omnitelegraphic way; whereas, in contradistinction, the conductor, as heretofore used, may be considered a private word road, or a *unitelegraphic way.1889Amer. Nat. XXIII. 597 Microcampana is not the only *unitentacular Medusa found in the prolific waters of our Pacific coast.1816R. Jameson Char. Min. (ed. 2) 212 A crystal is named..*Uniternary, when there is one by one row, the other by three rows.1852Dana Crust. i. 122 Post-medial region with a small tubercle; intestinal *uni-tuberculate.1856W. Clark Van der Hoeven's Zool. I. 303 Gyropus Nitzsch.—Tarsi *uniunguiculate.1950Archaeol. Jrnl. 1948 CV. 56 The first *univallate enclosure on Eddisbury Hill was preceded by a palisade structure.1979L. Laing Celtic Britain ii. 56 The simple univallate hillforts were in some cases given further ramparts.1899*Univariant [see invariant a. b].1940Glasstone Text-bk. Physical Chem. vi. 467 When two phases are in equilibrium..the conditions must correspond to a point on one of the lines..in Fig. 99: only temperature or pressure need be arbitrarily fixed..in order to define the system, and the latter has one degree of freedom, i.e., it is univariant.1978P. W. Atkins Physical Chem. vii. 181 The system is univariant when two phases are present; there is only one degree of freedom.1928Biometrika XXa. 32 Various writers struggled with the problems that arise when samples are taken from *uni-variate and bi-variate populations.1938Brit. Jrnl. Psychol. XXIX. 451 (heading) The influence of univariate selection on factorial analysis of ability.1973Nature 16 Mar. 210/3 The wealth of mathematical forms with which we can express the frequency or probability distributions of univariate theory.1876T. Le M. Douse Grimm's Law App. 206 Our own familiarity with *univocalized consonants.b. Prefixed to a n. and forming a compound used attrib., as uni-direction, uni-face, uni-pivot, uni-rhyme, uni-soil.1778[W. H. Marshall] Minutes Agric., Digest 18 A Unisoil Farm requires fewer Implements than a Polysoil Farm.1859E. Williams in Cambrian Jrnl. March 12 Four-lined unirhyme stanzas, of five or six syllables in a line.1888S. R. Bottone Electr. Instr. Making (ed. 2) 103 The uni-direction current machine.1897W. C. Hazlitt Suppl. Coinage Europ. Continent 17 A silver uniface bracteate of Otho I.1900Engineering Mag. XIX. 740 In some instances the engines are only uni-direction.1911H. M. Hobart Dict. Electr. Engin. II. 591/1 (heading) Unipivot measuring instrument.Ibid., The chief advantage of the unipivot instrument is that, owing to the fact that the moving system is supported on a single jewel, it may be entirely lifted off when the instrument is out of use.1940Chambers's Techn. Dict. 878/1 Unipivot instrument, an instrument whose moving-coil system is balanced on a single pivot passing through its centre of gravity.1944Antiquity XVIII. 217 Amid the amazing expressions of the goldsmith's art which Scandanavia..produced between the late 4th and mid-5th centuries, perhaps the most interesting is the bracteates, the pendent uniface medallions.1977Signature May/June 34/4 By October 1914 watermarked paper was produced and used. This had a uniface surface, as did the first issue.1977Gramophone Aug. 377 (Advt.), A unique system of magnetic stabilization on the unipivot bearings.2. Forming ns., as uniˈaxifer; ˈunicell Bot., a unicellular plant (Jackson Gloss. Bot. Terms, 1900); ˌunidimensioˈnality; ˌuniˈlinearism; uniˈpeltate (see quot.); uniˈstylist [L. stylus] (see quot.); † ˈunitrine [L. trīn-us], a unity in trinity (Obs.); uniˈtrinity, unity in trinity; ˈunitrope (see quot.).1869Student II. 12 They [sc. polymerous leaves] will be *uniaxifers, biaxifers, etc.; multiaxifers, according as their meriphylls [= the space between two nodes of a leaf] are arranged along a single axis, or an axis ramified two, three, or more times.1953C. E. Bazell Linguistic Form 3 *Unidimensionality. There is only one dimension of succession.1975Human Relations XXVIII. 795 Another factor is the unidimensionality of the approach.1964P. Worsley in I. L. Horowitz New Sociol. 374 It will certainly have to eschew *unilinearism and the West-European ethnocentrism of nineteenth-century schemas.1842Brande Dict. Sci., etc. 1275 *Unipeltates, [Cuvier's] Unipeltata, the name of a family of Stomapodous Crustaceans, comprehending those in which the carapace is composed of a single shield-like plate.a1849Poe Marginalia cxlii, He is as thorough a *unistylist as Cardinal Chigi, who boasted that he wrote with the same pen for a half a century.1605Timme Quersit. ii. ii. 108 It hath pleased the omnipotent Creator to manifest & showe himselfe a *Unitrine or Triune.1775Adair Amer. Ind. 127 Her belief of the *uni-trinity, and tri-unity of the deity.1910A. B. Basset Treat. Geom. Surfaces 25 The reciprocal polar of a unode is called a *unitrope.Add:[1.] unidentate, (b) Chem. = monodentate adj. s.v. mono- 1.1937H. Diehl in Chem. Rev. Aug. 39 Because of the little attention which this field has attracted, the simple variation of acidic and coördinating groups in the polydentate molecules has escaped investigation. The following classification is, however, obvious: A. *Unidentate 1. Either acidic or coördinating (groups held in the coördination sphere) B. Bidentate... C. Tridentate.1984Greenwood & Earnshaw Chem. of Elements (1986) vi. 188 The BH₄^- ion itself provides a rare example of a ligand that can be unidentate, bidentate, or tridentate.

uni-

word-forming element meaning "having one only," from Latin uni-, comb. form of unus (see one).

uni- /ˈju:ni/ combining form.

ORIGIN: Latin, combining form of unus one, a single.

Used in words with the senses ‘one, single’, ‘having, consisting of, characterized by, etc., one’. Orig. occurring in words adopted from French or Latin, as unanimity, unicorn, unison, universe, etc., and in words adapted from or modelled on Latin compounds, as univocal. Later forming many words including, by analogy with other numerical prefixes, unifold, unipresent, etc., and by the 19th cent. freely productive in the formation of spec. scientific and technical (esp. Botany & Zoology) words, freq. after mod. Latin formations, as unicellular, unilabiate, or from French terms, or in combination with English forms or words, sometimes in place of Greek mono-.

DERIVATIVE uniˈalgal adjective (Botany) derived from a single algal cell E20.
uniˈaxal adjective (now rare or obsolete) = uniaxial 1 E19.
unibrow noun (colloq.) a pair of eyebrows that meet above the nose, giving the appearance of a single eyebrow, a monobrow L20.
uniˈcapsular adjective (Botany) having the carpels united into a single capsule E18.
unicell noun (Botany) a unicellular plant L19.
unicelled adjective (Biology) unicellular L19.
uniˈcentral adjective pertaining to, arising from, or having a single centre M19.
uniˈclinal adjective (Geology) (a)^†= monoclinal adjective 2; (b) = homoclinal: M19.
unicode noun (a) (now rare) (a message in) a telegraphic code in which one word or set of letters represents a sentence or phrase;(b) Computing an international encoding standard for use with different languages and scripts, by which each letter, digit, or symbol is assigned a unique numeric value that applies across different platforms and programs L19.
uniˈcolorate adjective (rare) unicolorous M17.
uniˈcolorous adjective having only one colour; uniform in colour: M17.
uniˈcoloured adjective unicolorous E19.
uniˈcursal adjective (Math.) designating a curve or surface which is closed and can be drawn or swept out in a single movement M19.
uniˈcuspid adjective & noun (a) adjective having a single cusp or point; (b) noun a unicuspid tooth: L19.
uniˈdentate adjective (a) Zoology & Botany having a single toothlike serration; (b) Chemistry = monodentate: E19.
unidiˈmensional adjective of one dimension L19.
unidimensioˈnality noun the fact of having only one dimension M20.
uniface adjective (of a coin etc.) having one side blank or unfinished L19.
uniˈfacial adjective & noun (a) adjective pertaining to or having one face; Archaeology (of a flint etc.), worked on one face only (cf. bifacial); (b) noun (Archaeology) a unifacial stone tool: M19.
uniˈfilar adjective designating or having a moving part suspended by a single thread or wire M19.
uniˈfilarly adverb (Biochemistry) in a single strand of a DNA duplex L20.
uniˈflagellate adjective (Zoology) (of a protozoan) having one flagellum L19.
uniˈflorous adjective (Botany) bearing only one flower M18.
uniflow adjective & noun (a) adjective involving flow in one direction only; esp. designating or pertaining to a steam or internal-combustion engine in which steam or waste gases flow directly through the cylinder in one direction; (b) noun a uniflow engine: E20.
uniˈfoliate adjective (Botany) = unifoliolate M19.
uniˈfoliolate adjective (Botany) (of a compound leaf) reduced to one leaflet; (of a plant) characterized by leaves of this kind: M19.
uniˈgeniture noun (a) Theology the fact of being the only-begotten Son; (b) the fact of being an only child; the practice of having only one child: M17.
uniˈjugate adjective (Botany) having one pair of leaflets M19.
unijunction noun (Electronics) a negative resistance device consisting of a rectifying p–n junction in the middle of a length of semiconducting material that has an ohmic contact at each end, used as a switching element M20.
uniˈlabiate adjective (chiefly Botany, of a corolla or calyx) one-lipped E19.
unilaˈmellar adjective having one lamella, lamina, or layer L19.
uniˈlinear adjective affecting or involving one line; unilineal: M19.
uniˈliteral adjective using or consisting of only one letter E19.
uniˈlobar adjective (Zoology & Medicine) pertaining to, affecting, or having one lobe L19.
uniˈlobular adjective (Medicine) pertaining to or affecting single lobules L19.
uniˈlocular adjective (Biology & Medicine) having, consisting of, or characterized by only one loculus or cavity; one-celled: M18.
uniˈmodular adjective (Math.) having a determinant whose value is 1 M19.
uniˈnodal adjective having one node or nodal point M19.
uniˈnuclear, uniˈnucleate, uniˈnucleated adjectives = mononuclear adjective L19.
uniˈovular adjective (Biology) = monozygotic adjective E20.
uniˈpartite adjective consisting of or involving a single part L19.
uniˈpersonal adjective comprising or existing as a single person or individual E19.
uniˈpivot adjective (Electricity) designating or having a moving-coil system balanced on a single pivot E20.
uniˈplanar adjective (Math. & Mechanics) pertaining to, situated in, or operating in one plane M19.
uˈniplicate adjective having a single fold M19.
unipole noun = monopole noun² 2 M20.
uniˈprocessor adjective & noun (Computing) (a) adjective designating a system with only one processor; (b) noun a uniprocessor system; each of the constituent processors of a multiprocessor: M20.
uniˈramous adjective (Zoology) having or consisting of a single ramus or branch L19.
unisegˈmental adjective pertaining to or consisting of one segment L20.
uniselector noun (Telephony & Electricity) a single-motion switch which has a wiper that rotates in one plane only M20.
uniseptate adjective (Botany) having a single septum M19.
uniˈseriate adjective (Botany & Zoology) = uniserial M19.
uniˈvallate adjective (Archaeology) having a single encircling rampart M20.
uniˈvariant adjective (Physical Chemistry) (of a chemical system) having one degree of freedom L19.
uniˈvariate adjective (Statistics) involving or having one variate E20.

uni-

prefix. one; a single; having, or made of, only one: Unicellular = having one cell.

[< Latin ūnus one]

uni-
prefix
Etymology: Middle English, from Middle French, from Latin, from unus — more at one
: one : single
< uniaxial >
< unicellular >
< unilateral >

uni-

Etymology

From Latin uni-, combining form of unus (“one”).

Prefix

Latin number prefix
Previous:	nil-
Next:	bi-

one, single

Synonyms

mono-

Derived terms

English words prefixed with uni-

Related terms

uno

References

“uni-” in Merriam-Webster Online Dictionary, Merriam-Webster Online.

前缀：uni- 表示“一个, 单一”

uniform 一贯的，一致的（uni+form形状）

unique 独一无二（uni+que表形容词）

unison 和谐，协调（uni+son声音→一个声音→和谐）

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