Geotropism

[dʒi'ɒtrәpizm]

解釋/意思:

(noun.) an orienting response to gravity.

厄纳校對--From WordNet

解釋/意思:

(n.) A disposition to turn or incline towards the earth; the influence of gravity in determining the direction of growth of an organ.

手打:卡尔

解釋/意思:

n. (bot.) tendency to growth downward.—adj. Geotrop′ic.

校對:普拉特