英语词汇“tropism”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

tropism

释义

tropism Biol.|ˈtrɒpɪz(ə)m, ˈtrəʊpɪz(ə)m|
[The second element of heliotropism, geotropism, etc., used as an inclusive or generic term.]
The turning of an organism, or a part of one, in a particular direction (either in the way of growth, bending, or locomotion) in response to some special external stimulus, as that of light (phototropism, heliotropism), heat (thermotropism), gravity (geotropism), etc.
1899C. B. Davenport Morphology ii. 480 All cases of true tropism are cases of response to stimuli: such are chemotropism, hydrotropism, thigmotropism, traumatropism, rheotropism, geotropism, electrotropism, phototropism and thermotropism.1909J. W. Jenkinson Experim. Embryol. 273 The outgrowth and anastomoses of nerves, glands, ducts, the concrescence of layers may be tropisms of various sorts.

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