单词 | geotropism |
释义 | geotropismnoun ge·ot·ro·pism jē-ˈä-trə-ˌpi-zəm : a tropism (as of plant roots or shoots) in which gravity is the orienting factor : gravitropism Exactly how roots perceive and transduce gravity has not yet been fully explained, which is surprising because root geotropism has been investigated for more than 100 years. |
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