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Phototaxy   Listen
noun
Phototaxy, Phototaxis  n.  (Biol.) The influence of light on the movements of low organisms, as various infusorians, the zoospores of certain algae, etc.; also, the tendency to follow definite directions of motion or assume definite positions under such influence. If the migration is toward the source of light, it is termed positive phototaxis; if away from the light, negative phototaxis.






Collaborative International Dictionary of English 0.48







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