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词汇 equi-
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equi-
pref.（前缀）
  1. Equal; equally:
    均等的；相同的（地）：
    equiangular.
    等角的

语源
  1. Middle English
    中古英语
  2. from Latin aequi-
    源自 拉丁语 aequi-
  3. from aequus [equal]
    源自 aequus [相等]
equi-

combining form

equal or equally
⇒ equidistant
⇒ equilateral

equi-

Word Origin
1
a combining form meaning “equal,” used in the formation of compound words:
equimolecular.
Origin
Middle English < Latin aequi-, combining form representing aequus equal

Related Words

  • equivocal
  • equiangular
  • equicaloric
  • equidistance
  • equidistant
  • equiform
equi-a word element meaning 'equal', as in equidistant, equivalent.
[combining form representing Latin aequus equal]
equi-
combining form
 ETYMOLOGY  Latin aequi-, from aequus equal
: equal
    equipoise
: equally
    equiprobable
equi-
/ˈiːkwɪ/  
combining form
equal; equally
表示“相等的”; “相等地”：

equiangular

equidistant.

词源
from Latin aequi-, from aequus 'equal'.
equi-|ˈiːkwɪ-, ˈɛkwe-|repr. L. æqui-, combining form of æquus equal, prefixed originally to words of Latin origin, as equiangular, but occasionally to those from other sources, as equi-balance. The majority of the words so formed are adjectives; these are chiefly parasynthetic derivatives f. ns. after the analogy of the simple adjs.; in other instances the prefix has the advb. sense ‘equally, in an equal degree’. Less frequently the prefix forms verbs and substantives.ˌequianharˈmonic a. (see quot.); hence ˌequianharˈmonically adv. ˌequiarˈticulate a., having equal joints with another. equiˈbalance n. = equilibrium. † equiˈbalance v. Obs., to counterpoise, to constitute an equivalent to. ˌequibiˈradiate a., having two equal rays. equiˈcellular a. Biol., made up of similar cells. equiˈchangeable a., equally varying. † equiˈcheapness, Obs. the quality of being equally cheap. equicohesive temperature Metall. (see quot. 1917). equiconˈtinuous a. Math. [tr. It. egualmente continuo (C. Arzelà 1895, in Mem. d. R. Accad. d. Sci. dell'Ist. di Bologna V. 226)], of a set of functions fi(x): having the property that for all x1 and all ε > o there corresponds a δ > o such that, if {vb}x - x1{vb} i(x) - fi(x1) {vb} ἰσηµερινός (see quot.). † ˌequidiˈvision, Obs., equal division. † ˌequiˈdurable a. Obs., equally durable. equiˈexcellency, the being equally excellent. equiˈgraphic, a. (see quot.). equiˈlobate a., equally lobate, having equal lobes. † equiˈlucent a. Obs., shining with equal or even light. equiˈmolar a. = equimolecular (b). equimoˈlecular a., (a) having an equal number of molecules; (b) having an equal number of moles (cf. mole n.7). ˌequimoˈmental a. Physics, having equal moments of inertia about parallel axes. † equiˈnecessary a. Obs., needful in an equal degree. † equiˈnumerally adv. Obs., in equal, i.e. corresponding, numbers or feet. † equiˈnumerant a. Obs., having the same number, consisting of the same number. † ˌequiomˈnipotent a. Obs., equally all-powerful. equiˈpensate v. Obs., to weigh equally; to esteem alike. ˌequiperiˈodic a., having equal periods. equiˈprobabilism, the doctrine of the equiprobabilists. equiˈprobabilist (see quot.). equiproˈducing a., equally producing; producing an equal amount or crop. equiˈradial a., having equal radii. equiˈradical a., ‘equally radical’ (W.). ˌequisegˈmental a. Math., having equal segments. equiˈsignal a. Aeronaut., of a radio beacon or guidance system of overlapping zones (see quot. 1951). equiˈsized a., equally sized, of equal size. † equisuˈfficiency nonce-wd., the being equally sufficient. ˌequitanˈgential a., having a tangent equal to a constant line; said of a certain curve. † equitempoˈraneous a. Obs., performed in equal lengths of time. † equiˈvaliant a. Obs., equally valiant; of sufficient prowess. equiˈvalue v. trans., (a) to value equally, put on a par; (b) to equal in value. ˈequivalved a. Conch. (see quot.). † ˌequiveˈlocity. Obs., equality in velocity. equiˈvote, the event of an equal number of votes having been given on either side.1885C. Leudesdorf Cremona's Proj. Geom. 55 If two ranges, each of four points, are projective, they..are *equianharmonic.1852Dana Crust. ii. 1131 The accessory branch is but little the shorter, nearly *equi-articulate.1841Blackw. Mag. XLIX. 372 The sphere of Coreggio..exemplified the attempt to create an *equi-balance of the great elements of the constitution of man.1665Manley Grotius' Low C. Warres 916, 500 Foot, or so many Ships, as should equi⁓ballance that Number.1675J. Smith Chr. Relig. Appeal 48 (L.), In Mahomet..the passions of amorousness and ambition were almost equibalanced.a1678Woodhead Holy Living (1688) 110 Equiballancing to the other.1890E. R. Lankester in Encycl. Brit. XXIV. 810/2 The unicellular or *equicellular Protozoa.1800Sir W. Herschel in Phil. Trans. XC. 536 The proportional elevations which a set of *equi-changeable thermometers would experience.1612Sturtevant Metallica (1854) 85 Equi-sufficiencie, *Equi-cheapness, Equi-excellency [are the lesser vertues of a deriuative Inuention].1917Z. Jeffries in Jrnl. Amer. Inst. Metals Dec. 300 (title) The Amorphous Metal Hypothesis and *Equi-Cohesive Temperatures.Ibid. 311 There must be some intermediate temperature in any given metal at which the cohesion of the amorphous and crystalline phases is the same. I will refer to this temperature as the ‘Equi-Cohesive Temperature’.1959Jrnl. Iron & Steel Inst. CXCI. 208/2 The author first describes methods for determining equicohesive temperature and for ascertaining its dependence on grain size, strain and strain rate.1926E. W. Hobson Theory Functions (ed. 2) II. ii. 168 In case the family of continuous functions is such that, for each value of ε, a single set of sub-intervals or sub-cells can be so determined that, for every function f(x) of the family, the fluctuation in a sub-interval, or a sub-cell, of a set, is less than ε, the family is said to consist of *equi-continuous functions.1959G. & R. C. James Math. Dict. 21/1 Ascoli's theorem. From any set of uniformly bounded functions equicontinuous on a bounded closed (compact) set (such as a closed interval) it is possible to select an infinite sequence which converges uniformly to a limit function which is also continuous.1857B. Price Infinitesimal Calculus I. 89 This variable..I have ventured to call *Equicrescent.1726tr. Gregory's Astron. I. i. 47 The Proportions..agree..to this Curve, to which the Circle is *equicurve.1762tr. Busching's Syst. Geog. I. Pref. 39 The radius of a circle æquicurve to the meridian.1817H. T. Colebrooke Algebra 58 *Equidiagonal tetragons.1858Whewell Nov. Org. 262 (L.), The circle which the sun describes in his diurnal motion, when the days and nights are equal, the Greeks called the *equidiurnal.1633Ames Agst. Cerem. ii. 174 That doeth not hinder a superdivision, or *æquidivision, into common and speciall.1686Goad Celest. Bodies ii. viii. 256 To ascribe a durable Constitution, or State of Air, to an *Equi-durable mover.1612*Equiexcellency [see equicheapness].1866Proctor Handbk. Stars 22 The homolographic (or, as I prefer to call it, the *equigraphic) projection of maps: that is of the construction of maps in which all areas shall be correctly given.1872Nicholson Palæont. 325 Ganoids with heterocercal *equilobate tails.1608Sylvester Du Bartas 767 Bee't Cloudy, cleer, Eclipse, or night, or day, His lovely browes are *equilucent ay.1946Nature 14 Dec. 877/1 Carré and Libermann have shown..that it is of great advantage to use *equimolar quantities of acid, pyridine, and thionyl chloride.1961Lancet 2 Sept. 566/2 The solution contained equimolar amounts of α-ketobutyric acid and sodium hydroxide.1909J. W. Jenkinson Exper. Embryol. iii. 140 *Equimolecular solutions of monobasic lithium salts.1922F. W. Aston Isotopes 19 Solutions of two different compounds of lead in equimolecular proportions.1963A. J. Hall Textile Sci. ii. 72 An equimolecular mixture of the two monomers.1881J. Larmor in Nature XXIV. 605 The well-known property of *equi-momental ellipses.1663Butler Hud. i. iii. 1034 For both to give blows and to carry, In fights are *equenecessary.1640J. Gower (title), Ovid's Festivalls, or Romane Calendar; translated into English Verse *equinumerally.1705Arbuthnot Coins (J.), This talent of gold, though not *equinumerant, nor yet equiponderant, as to any other; yet was equivalent to some correspondent talent in brass.1797J. Lawrence in Monthly Mag. (1818) XLVI. 214 That even abstract power appears to be limited by *equiomnipotent absurdity.1692–1732Coles, *Equipensate, weigh or esteem alike.1882Minchin Unipl. Kinemat. 10 Superposed *Equiperiodic Rectilinear Vibrations.1817H. T. Colebrooke Algebra 74 Also in an *equi-perpendicular tetragon..to find the area.1888Dublin Rev. Jan. 219 The contest between probabilism and *æquiprobabilism has not been touched at all.1882Littledale in Encycl. Brit. XIV. 636 s.v. Liguori, *Equiprobabilists, who teach that in a balance of opinion the less safe opinion may be lawfully followed, provided it be as probable, or nearly as probable, as its opposite.1846Grote Greece ii. vi. II. 537 Something approaching to *equi-producing lots for all.1817Coleridge Biog. Lit. 130 If we affirm of a circle that it is *equi-radial.1931P. V. H. Weems Air Navig. xiv. 273 A radio beam is broadcast by transmitters known as *equi-signal beacons. Transmitters employ two cross-loops, radiating a characteristic dot-and-dash signal.1936Jrnl. R. Aeronaut. Soc. XL. 172 The system of directional equi-signal beacons established to mark the chain of air routes throughout the U.S.A.1951Gloss. Aeronaut. Terms (B.S.I.) iii. 31 Equi-signal zone, a zone within which, with an overlapping signal pattern system, indication is given that an aircraft is on a track.1889Evening Post 25 Jan. 1/4 The lady's bicycle, which is built..with *equi-sized wheels.1612*Equi-sufficiency [see equicheapness].1715De Moivre in Phil. Trans. XXIX. 334 The Curve A C B may..be call'd the *Equitangential Curve.1871Olney Geom. xiii. 172 The..Equitangential Curve is generated by the motion of a weight, etc.1709F. Hauksbee Phys. Mech. Exper. v. (1719) 197 Galileo's famous Proposition, about the *Equitemporaneous Descents of heavy Bodies in the Chords of a Circle.1579J. Stubbes Gaping Gulf D ij b, The daughter..shal haue much adoe to find *equiualiant champions.1803W. Taylor in Robberds Mem. I. 470 He has the fault of all our antiquaries, to *equivalue the noble and the rabble of authorities.1865F. Hall in Reader 14 Jan. 43/1 Anything adequate mounts up to; whereas that which is adequative simply equivalues.1836Todd Cycl. Anat. I. 711 In a considerable number of species the two valves are alike, when the shell is said to be *equivalved.1662Stillingfl. Orig. Sacr. iii. ii. §16 The *æqui-velocity of the motion of all Atoms..which he likewise asserted.1745Revised Charter Yale Coll. in Catal. Yale Univ. (1886) 20 Where an *Equivote happens, the President shall have a casting Vote.1888A. P. Foster in Advance (Chicago) 1 Mar. 132 In an equi-vote the question shall determine on that side on which the presiding member shall have voted.
equi-
before vowels equ-, word-forming element meaning "equal, having equal," from Latin aequi-, comb. form of aequus "equal, even" (see equal, adj.).
equi-

equal:
equidistant, equilateral, equilibrium, equinox, equation, equator
equi- /ˈi:kwi, ɛ-/ combining form. Also aequi-†.
ORIGIN: Repr. Latin aequi-, from aequus equal: see -i-.
Used in words adopted from Latin, and in English words modelled on these, and as a freely productive prefix, with the sense ‘equal(ly), in an equal degree’.
 DERIVATIVE equianalˈgesic adjective producing an equal analgesic effect M20.
equiaˈtomic adjective (of an alloy or intermetallic compound) containing equal numbers of atoms of two particular constituent elements M20.
equiaxe adjective [French équiaxe] = equiaxed E19.
equiaxed adjective (of a crystal) having all its axes the same length M19.
equicaˈloric adjective (of food) equivalent as regards content of calories M20.
equiˈdifferent adjective (Math., now rare or obsolete) having equal differences, in arithmetic proportion L17.
equidiˈmensional adjective (of a particle) having approximately equal dimensions in each direction M20.
equiˈfinal adjective having the same result M20.
equifiˈnality noun the condition of being equifinal E20.
equiform adjective having the same form L19.
equiˈformity noun uniformity M17.
equiˈmolar adjective (Chemistry) (a) containing an equal number of moles; (b) = equimolecular (a): E20.
equimoˈlecular adjective (Chemistry) (a) containing an equal number of molecules; (b) = equimolar (a): E20.
equiˈmultiple noun any of a set of numbers each of which is the same multiple of a number in another set M17.
equiˈnumerous adjective (Math. & Logic) containing the same number of elements (foll. by with) M20.
equiˈradial adjective (rare) having equal radii E19.
equi-ˈsignal adjective designating the line or zone along which the signals from two radio beacons are equally strong, detection of this equality confirming position on the line; of or pertaining to a navigation system that works on this principle: M20.
equivalve adjective (of a bivalve mollusc or its shell) having valves that are of similar size and shape M19.
equivoˈluminal adjective (of a wave) occurring without a change in the volume of each part of the medium through which it passes L19.
equivote noun (US) a tied vote M17.
equi-
combining form.
equal _____: Equidistance = equal distance.
equally _____: Equidistant = equally distant.
[< Latin aequi- < aequus equal]
equi-
combining form
also aequi-
Etymology: Middle English equi-, from Middle French & Latin; Middle French equi-, from Latin aequi-, from aequus level, equal
: equal
 < equidistribution >
: equally
 < equidistant >
 < equisided >

equi-
  • æqui- (obsolete), aequi- (rare, archaic)

    • Prefix

    1. Equal.

    Etymology

    equ- + -i-, by anaptyxis, to ease pronunciation, especially between consonants.

    Derived terms

    English words prefixed with equi-


    Related terms

  • equidistant
  • equigeneric
  • equilateral
  • equilibrium
  • equivalent
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