geotropismn.
英 ,dʒiːə(ʊ)'trəʊpɪz(ə)m
中文n. [植] 向地性；屈地性
词根词源
geotropism (n.)"growth downward," 1874, from geo- "earth" + -trope "a turn, direction" (see trope), translating German Geotropismus (1868), which was coined in 1868 by German botanist Albert Bernhard Frank (1839-1900). Related: Geotropic.
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