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单词 inactive
释义 inactive, a.|ɪnˈæktɪv|
[f. in-3 + active: cf. F. inactif (1771 in Hatz.-Darm.).]
1. Not active; characterized by absence of action or activity; not disposed to act; inert, indolent, sluggish; passive, quiescent.
1725Pope Odyss. View Epic. Poem §3 Led away by the seeming Charms of an idle and inactive life.1789W. Buchan Dom. Med. (1790) 85 The inactive are continually complaining of pains of the stomach.1818Cruise Digest (ed. 2) III. 231 The title to a barony, which has descended upon, and is vested in coheirs, remains in them in an inactive and dormant state.1837Whewell Hist. Induct. Sc. (1857) I. 159 This Alexandrian period, so inactive and barren.1838Thirlwall Greece xxii. III. 207 The Spartans..were not entirely inactive this summer.1866Odling Anim. Chem. 155 A converter of inactive or free, into active or combined oxygen.1883Manch. Exam. 13 Dec. 4/1 The money market to-day was very inactive.
2. Chem. [tr. F. (moléculairement) inactif (J. B. Biot 1840, in Ann. de Chim. et de Physique LXXIV. 403).] Not rotating the plane of polarization of polarized light. Often qualified by optically.
Pasteur adopted the term from Biot (Jrnl. de Pharm. et de Chim. (1848) XIII. 449).
1853L. Pasteur in Chem. Gaz. 1 Sept. 323 The latter [body]..resists isomeric transformation, and remaining without alteration in the quinicine, gives this its feeble deviation to the right. The other group, which..is very active, becomes inactive when the quinine is heated so as to become converted into quinicine; so that quinicine is nothing but quinine in which one of the active constituent groups has become inactive.1857W. A. Miller Elem. Chem. III. v. 334 It [sc. another modification of tartaric acid] has been termed by Pasteur, inactive tartaric acid, in allusion to its want of action upon polarized light.1905Jrnl. Physiol. XXXII. p. xxxix (heading) The formation of inactive arginine by enzymes from proteids which yield optically active arginine on hydrolysis with acids.1961L. F. & M. Fieser Adv. Org. Chem. iii. 83 Properties of the two active and two inactive forms of tartaric acid are given in Table 3.2. A noteworthy point is that the dl- form, racemic acid, melts at a higher temperature than the optically active components.
So inˈactiveness, inactivity.
1678C. Hatton in H. Corr. (Camden) I. 164 Complaining to y⊇ King of y⊇ weeknesse of y⊇ King's bench, by reason of y⊇ inactivenesse of y⊇ Ld Ch. Justice.
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更新时间:2024/12/22 15:10:21