PHOTOTROPISM
phototropism
(noun) an orienting response to light
Source: WordNet® 3.1
Etymology
Noun
phototropism (countable and uncountable, plural phototropisms)
(biology) the movement of a plant towards or away from light
Antonyms
• scototropism, skototropism
Source: Wiktionary
Pho*tot"ro*pism, n. [Photo-+ Gr. to turn.] (Plant Physiol.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
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Word of the Day
21 April 2025
ENCYCLOPEDIA
(noun) a reference work (often in several volumes) containing articles on various topics (often arranged in alphabetical order) dealing with the entire range of human knowledge or with some particular specialty
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