英语词汇“darwinian curvature”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Darwinian curvature n. [after German Darwin'sche Krümmung ( J. Wiesner Bewegungsvermögen der Pflanzen (1881) 210, with reference to C. Darwin's Power of Movement in Plants (1880))] Botany (now historical) curvature in the tip of a root, convex on the side to which the stimulus is applied, which is induced by mechanical irritation.

ΚΠ

1883 Jrnl. Royal Microsc. Soc. 3 872 The hydrotropism of roots is only a special case of the so-called ‘Darwinian curvature’.

1885 Encycl. Brit. XIX. 60/2 It has been shown that the mere presence of the drop of shellac is sufficient to induce the Darwinian curvature, and microscopical examination has proved that the part touched by the shellac had died away.

1909 J. R. Green Hist. Bot. 1860–1900 xi. 479 In 1880 Darwin observed what Wiesner later called the Darwinian curvature, which is a definite result of stimulation, the tip [of the root] being diverted away from the obstacle touching it by a bending of the axis at a point higher up.

单词	darwinian curvature
释义	> as lemmas Darwinian curvature Darwinian curvature n. [after German Darwin'sche Krümmung ( J. Wiesner Bewegungsvermögen der Pflanzen (1881) 210, with reference to C. Darwin's Power of Movement in Plants (1880))] Botany (now historical) curvature in the tip of a root, convex on the side to which the stimulus is applied, which is induced by mechanical irritation. ΚΠ 1883 Jrnl. Royal Microsc. Soc. 3 872 The hydrotropism of roots is only a special case of the so-called ‘Darwinian curvature’. 1885 Encycl. Brit. XIX. 60/2 It has been shown that the mere presence of the drop of shellac is sufficient to induce the Darwinian curvature, and microscopical examination has proved that the part touched by the shellac had died away. 1909 J. R. Green Hist. Bot. 1860–1900 xi. 479 In 1880 Darwin observed what Wiesner later called the Darwinian curvature, which is a definite result of stimulation, the tip [of the root] being diverted away from the obstacle touching it by a bending of the axis at a point higher up. extracted from Darwinianadj.n. < as lemmas
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