| 单词 | thigmotropism | 
| 释义 | Word Frequency thigmotropism(ˌθɪɡməʊˈtrəʊpɪzəm) noun the directional growth of a plant, in response to the stimulus of direct contactAlso called: haptotropism, stereotropism Derived formsthigmotropic (ˌthigmoˈtropic) adjective Word originC19: from Greek thigma touch + -tropism | 
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