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单词 chemotaxis
释义

chemotaxisn.

Brit. /ˌkiːmə(ʊ)ˈtaksɪs/, /ˌkɛmə(ʊ)ˈtaksɪs/, U.S. /ˌkimoʊˈtæksɪs/, /ˌkɛmoʊˈtæksɪs/
Inflections: Plural chemotaxes.
Forms: 1800s– chemiotaxis (now rare), 1800s– chemotaxis.
Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: chemo- comb. form, -taxis comb. form.
Etymology: < chemo- comb. form + -taxis comb. form, after German Chemotaxis (W. Pfeffer 1888, in Untersuchungen aus dem botanischen Institut zu Tübingen 2 582).
Biology.
The orientated or directional movement of a motile cell or organism in response to a gradient of concentration of a particular substance; an instance of this. Cf. chemotropism n.
ΘΚΠ
the world > life > biology > biological processes > movement > movement in response to stimuli > [noun] > response to chemical
chemotaxis1888
chemotropism1890
chemoreflex1898
chemokinesis1900
chemotactism1903
1888 Jrnl. Royal Microsc. Soc. 770 A phenomenon which he [sc. Pfeffer] designates by the term ‘chemotaxis’.
1894 J. S. Burdon-Sanderson in Rep. Brit. Assoc. 1893 26 As a general designation of reactions of this kind Pfeffer devised the term Chemotaxis, or, as we in England prefer to call it, Chemiotaxis.
1902 Encycl. Brit. XXXI. 518 The influence of the chemical substance is either that of attraction or repulsion, the one being known as positive, the other as negative chemotaxis.
1951 Jrnl. Parasitol. 37 339 Is it chemotaxis, or a series of chemotaxes, by which Paragonimus is led through the gut wall into the coelom..and finally into the lungs?
1977 T. I. Storer et al. Elements Zool. (ed. 4) xxii. 370/1 A Drosophila is guided by its olfactory organs to overripe fruit..by a positive chemotaxis to certain alcohols and organic acids in the fermenting fruit.
2006 European Jrnl. Cell Biol. 85 1101/2 It seems that the signalling pathways for chemotaxis and electrotaxis in Dictyostelium converge upstream of directed actin polymerization.

Derivatives

chemoˈtaxic adj. = chemotactic adj.
ΘΚΠ
the world > life > biology > biological processes > movement > movement in response to stimuli > [adjective] > response to chemical
chemotactic1888
chemotropic1895
chemotaxic1896
chemokinetic1901
chemotrophic1902
chemotactical1908
1896 Lancet 22 Feb. 477/2 Induration, the result of the chemiotaxic action of the toxine, can, therefore, not occur at once.
1899 Amer. Jrnl. Psychol. 10 258 A study directed with a view to ascertain its chemotaxic and tonotaxic reactions.
1997 V. A. Rosario Erotic Imagination iv. 153 Other psychologists described love as..a primeval chemotaxic drive: the attraction of sperm for ova.
This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022).
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n.1888
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