Bible Dictionaries
Phototaxy
Webster's Dictionary
(n.) 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.
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Bibliography Information
Webster, Noah. Entry for 'Phototaxy'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/phototaxy.html. 1828.