- geotropism (n.)
[geotropism 词源字典]
- "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.[geotropism etymology, geotropism origin, 英语词源]