单词 | inducible |
释义 | inducibleadj. 1. a. Capable of being brought on, brought about, or caused. ΘΚΠ the world > existence and causation > causation > effect, result, or consequence > [adjective] > caused or induced > that may be caused occasionablea1586 causable1646 induciblea1677 a1677 I. Barrow Of Contentm. (1685) 161 Subject to all the changes, inducible from the restless commotions of outward causes affecting and altering sense. 1958 Times 7 Nov. 7/7 This [sc. ‘vigour tolerance’] is attributed to factors such as increased weight or improved biochemical conditions, inducible as a strain characteristic to be found in extremes of environmental conditions. 1973 Nature 6 July 6/1 In the case of adjuvant arthritis—inducible in rats by remote injection of water-in-oil emulsion incorporating killed mycobacteria. b. Biology. Of a bacterium: capable of being induced (induce v. 4e). ΘΚΠ the world > life > biology > organism > micro-organism > bacterium > [adjective] > specific quality of tetragenous1888 lysogenic1899 toxicogenic1899 cryophilic1916 R1920 rough1921 smooth1921 sulphate-reducing1926 thermoduric1927 lac−1947 induced1951 inducible1953 thermoacidophilic1976 1953 Cold Spring Harbor Symp. Quant. Biol. XVIII. 102/1 A growing culture of inducible lysogenic bacteria. 1959 Jacob & Wollman in Burnet & Stanley Viruses II. ix. 328 Within the same bacterial species, both inducible and non-inducible strains can be isolated. c. Biochemistry. Of an enzyme or enzyme system: produced in response to the presence of an appropriate inducer. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [adjective] > of nucleic acid > of enzymes constitutive1932 Michaelis–Menten1934 inducible1953 angiotensinase1958 1953 Cohn et al. in Nature 12 Dec. 1096/1 It might prove unpractical to abandon the use of the term ‘enzyme adaptation’ altogether at this stage; but we should like to suggest that..a more accurate and significant terminology be employed. We therefore propose the following terms and designations; previously used terms are placed in parenthesis. A relative increase in the rate of synthesis of a specific apoenzyme resulting from exposure to a chemical substance is an ‘enzyme induction’ (enzyme adaptation). Any substance thus inducing enzyme synthesis is an enzyme ‘inducer’. An enzyme-forming system which can be so activated by an exogenous inducer is ‘inducible’, and the enzyme so formed is ‘induced’ (adaptive). Although many compounds can act both as inducer and substrate, the terms are not equivalent. Certain substrates for induced enzymes are not inducers, while some inducers cannot function as substrates of the enzymes the formation of which they elicit. 1966 E. R. M. Kay Biochemistry xxvii. 353 Some enzymes appear only when a special, but nevertheless necessary energy source is provided, as in the case of β-galactosidase formation. Such enzymes are called ‘inducible’ enzymes. 1971 Nature 19 Nov. 135/1 In the inducible regulatory system of mammals, hormones rather than substrates..serve as inducers. ΘΚΠ the mind > mental capacity > understanding > reason, faculty of reasoning > process of reasoning, ratiocination > process of inferring, inference > [adjective] > that may be inferred concludablea1617 inducible1643 collectable1646 inferrible1646 derivable1651 conclusible1654 inferable1755 1643 Sir T. Browne Religio Medici (authorized ed.) i. §48 Many things are true in Divinity, which are neither inducible by reason, nor confirmable by sense. View more context for this quotation 1646 Sir T. Browne Pseudodoxia Epidemica vi. vi. 303 That the extream and remote parts of the earth were in this time inhabited, is also induceable from the like Testimonies. This entry has not yet been fully updated (first published 1900; most recently modified version published online December 2020). < adj.1643 |
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