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词汇 ter-
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ter-

combining form

three, third, or three times
⇒ tercentenary

Origin

from Latin ter thrice; related to trēs three

ter-

Word Origin
1
a combining form meaning “thrice,” used in the formation of compound words:
tercentennial.
Origin
< Latin, combining form of ter; akin to trēs three

Related Words

  • teratogenesis
  • Belgian Tervuren
  • pteropodium
  • teratology
  • teratoma
  • terbutaline
ter-
combining form
 ETYMOLOGY  Latin, from ter; akin to Greek & Sanskrit tris three times, Latin tres three — more at three
: three times : threefold : three
    tercentenary
ter-
/teə(r)/  
combining form
three; having three
表示“三”, “有三个…的”：

tercentenary.

USAGETer- is commonly replaced by tri-, as in tricentenary.
词源
from Latin ter 'thrice'.
ter-|tɜː(r)|the L. adv. ter ‘thrice’, in comb.1. a. Prefixed to adjs., in sense ‘thrice, three times’, as ter-ˈtrinal, consisting of three sets of three; also expressing a high degree, as ter-ˈsacred [L. ter sacer], thrice sacred.1600W. Watson Decacordon (1602) Pref. A vj b, The tersacred Apostolicall Romane Church.Ibid. 7 Directing his hand to that tender tersacred and euer blessed heart.1876T. Le M. Douse Grimm's L. §25. 53 It is certain that the symmetrical ter-trinal trinity constituted by all these three systems together cannot have existed from all time.b. Prefixed to adjs. and ns.: expressing threefold recurrence or continuance; as ter-diˈurnal a., occurring or done thrice a day; ter-ˈmillenary [after tercentenary], a three-thousandth anniversary.1892Ld. Kelvin Presid. Addr. R. Soc. 30 Nov., The largeness of the solar semi-diurnal, ter-diurnal, and quarter-diurnal constituents found by the harmonic analysis.1864Realm 15 June 6 The festivities held there by so many millions of our dusky fellow-subjects in honour of the ter⁓millenary of that sweet swan of Nerbudda.c. See also tercentenary, tergeminate, etc.2. Chem. a. With the names of classes of compounds, as acetate, bromide, chloride, chromate, fluoride, iodate, nitrate, oxide, sulphate, tannate, etc., expressing the presence of three atoms, molecules, or combining equivalents of the element or radical indicated by the rest of the word, as nitrogen terchloride, NCl3, potassium terchromate, K2O.3CrO3, or K2Cr3O10, ternitrate of bismuth, Bi(NO3)3, etc. Now mostly superseded by tri-.1836Brande Chem. (ed. 4) 773 Terchloride of Chromium. (Chr+O3C.)1838T. Thomson Chem. Org. Bodies 258 It is..a tertannate.1849D. Campbell Inorg. Chem. 111 Besides this iodate of potash, there are other two, namely, a biniodate and a teriodate.1853W. Gregory Inorg. Chem. (ed. 3) 240 Antimony... This valuable metal is chiefly found in the mineral called antimony, which is a tersulphuret, SbS3.1853Ure Dict. Arts I. 1058 The explosive compound, the teriodide of nitrogen.1856Miller Elem. Chem. II. 914 Terfluoride of chromium forms deep red fumes of chromic acid.1869Roscoe Elem. Chem. 230 A third salt, termed ter-chromate [ed. 1882 trichromate], K2Cr3O10, crystallizes out.1883Hardwich's Photogr. Chem. (ed. Taylor) 55 There are two Chlorides of Gold—viz., the Protochloride and the Terchloride. The latter is the one used in Photography.b. In other compounds, as † ter-aˈtomic a., of three atoms, triatomic; ter-eˈquivalent a. = trivalent; termoˈlecular a., involving three molecules; terˈpolymer, a polymer whose molecule is composed of three different monomers; hence terˌpolymeriˈzation, polymerization in which three different monomers go to form a terpolymer; ˈtervalence = trivalence; ˈtervalent a. = trivalent.1860Frankland in Q. Jrnl. Chem. Soc. XIII. 192 Organo-metallic compounds..are uniatomic, biatomic, teratomic, or quadratomic, according to the number of molecules requisite to complete their saturation.1866Macadam G. Wilson's Inorg. Chem. §1109 The Triatomic, Trihydric, or Terequivalent (Terivalent) elements.1901Jrnl. Chem. Soc. LXXIX. i. 229 Even in darkness the action is termolecular.1931Maass & Steacie Introd. Princ. Physical Chem. xii. 199 The reaction between nitric oxide and chlorine is an example of a termolecular reaction.1974Nature 19 Apr. 666/2 The dimer must be formed by a termolecular collision.1961Webster, Terpolymer.1967New Scientist 18 May 423/3 Terpolymers (e.g. ABS plastics) are in use already.1975Sci. Amer. Oct. 54/3 The three products that proved to be most broadly successful are generically classified as a urethane, a dimethyl silicone and a styrene acrylonitrile terpolymer.1964Jrnl. Polymer Sci. A. II. 2740 Penultimate effects in copolymerization can be determined more precisely from composition studies in terpolymerization experiments than in binary polymerizations.1976H. Sawada Thermodynamics of Polymerization ix. 262 (caption) Heat of terpolymerization for the acrylonitrile⁓methyl methacrylate-styrene system.1869Eng. Mech. 12 Nov. 198/3 The elements are classified as..triatomic or tervalent, with three attractions, as nitrogen.1903Athenæum 3 Jan. 22/2 We wish that the translator had avoided the use of such hybrid words as monovalent, divalent, trivalent, tetravalent, and pentavalent when he had to hand the equally expressive and less mongrel words univalent, bivalent, tervalent, quadrivalent and quinquevalent.
ter-
word-forming element meaning "thrice, three times," from Latin ter "thrice," from *tris-, from root of three. Compare Latin tertius "third."
ter-

three times, thrice:
tercet, tercenternary
ter- /tə:/ combining form.
ORIGIN: Latin ter thrice.
Thrice, three times; threefold; esp. in Chemistry, having three atoms or radicals of a particular kind.
 NOTE  Largely superseded by tri-.
 DERIVATIVE termoˈlecular adjective involving three molecules E20.
terˈpolymer noun a polymer composed of three different monomers M20.
terpolymeriˈzation noun polymerization in which three different monomers form a terpolymer M20.
terˈvalent adjective = trivalent M19.
ter-
combining form
Etymology: Latin, from ter three times; akin to Greek & Sanskrit tris three times, Latin tres three — more at three
1. : three times, threefold, thrice, three
 < tercentenary >
2. : tri- 4 — especially in names of organic compounds to denote tripling of a radical or molecule
 < terphenyl >

ter-

Prefix

  1. three
    tertiary

Etymology

From Latin ter (“three times”).

Derived terms

English words prefixed with ter-


References

  • Definition of ter - Merriam-Webster Online Dictionary

    • 前缀：ter-

    【词根含义】：三
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