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phototropism |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Phototropism \Pho*tot"ro*pism\, n. [Photo- + Gr ? to turn.] (Plant Physiol.) The tendency of growing plant organs to move or curve under the influence of light. In ordinary use the term is practically synonymous with heliotropism. From WordNet r 1.6 [wn]: phototropism n : an orienting response to light
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