| 释义 |
inducer|ɪnˈdjuːsə(r)|
[f. as prec. + -er1.]
1. One who or that which induces, persuades, or leads on (to some act, conduct, opinion, etc.).
1554Martin Marr. Priests C iij b (T.), How can he be a mete perswader or inducer of the people to widowheade, which hath himselfe been often maried? 1624R. B. in F. White's Repl. Fisher App. 25 Euerie thing that is the first Inducer to beleeue is not by and by..the principall Motiue. a1716South Serm. (1744) VIII. iv. 85 As if he [God] were the great impeller and inducer of men to sin. 1799E. Du Bois Piece Fam. Biog. III. 159 Grief is perhaps a greater inducer to invoke the muse than joy.
2. a. One who or that which introduces or brings in or on (some state or condition). rare except in scientific contexts.
a1631Donne Serm. ciii. I. 387 And yet..this Messenger of Satan was..a forerunner and some kind of inducer of that Grace which was sufficient for him. 1833Mrs. Browning Prometh. Bound Wks. 1850 I. 160, I..devised for them Number, the inducer of philosophies. 1970Sci. Jrnl. June 70/1 Corticine favours the development of the cortex and inhibits the medulla while medullarine has the opposite effect. These inducers, as they are called, also impose ovogonial or spermatogonial development upon the germ cells. 1971New Scientist 24 June 745/2 Consistency is maintained by several indications..that prostaglandins are potent inducers of fever. 1971Sci. Amer. July 27/3 The search for inducers..turned up many different kinds of substances that stimulated interferon production in animals. These included bacteria, parasites, viruses, polysaccharides,..and other substances.
b. Biochem. Any substance (freq. the substrate of the enzyme concerned) whose presence results in (increased) production of an enzyme. (Cf. induction 9 c.)
1953[see induction 9 c]. 1959Jrnl. Molecular Biol. I. 175 When inducer is added at this stage, enzyme synthesis is resumed. 1971J. Z. Young Introd. Study Man iii. 54 The action of the inducer (lactose) is to inactivate the repressor. |