1899, "tendency of an animal or plant to turn or move in response to a stimulus," 1899, abstracted from geotropism or heliotropism, with the second element taken in an absolute sense; ultimately from Greek tropos "a turning" (see trope).
实用例句
1. Aerotropism A TROPISM in which the orientating stimulus is oxygen.
向氧性:一种刺激方向为氧气的向性运动.
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2. Objective To study the host range and tissue tropism of SARS coronavirus.
目的了解SARS病毒的组织嗜性和宿主趋向性.
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3. Thigmotropism ( haptotropism ) A tropism in which the stimulus is touch.
向触性:生物体接触到刺激时发生向性运动.
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4. Tropism of taste: bitter, cold. In the heart, stomach.
性味归经: 苦, 寒. 归心 、 胃经.
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5. Tropism of taste: Gan Wen. In the lungs, spleen by.
