- a tendency of some plant parts to assume positions at night that are different from their daytime positions
单词 | nyctitropism |
释义 | Collins Concise English Dictionary © HarperCollins Publishers:: nyctitropism /nɪkˈtɪtrəˌpɪzəm/ n
nyc•ti•trop•ic (nik′ti trop′ik, -trō′pik),USA pronunciation adj. [Bot.]
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