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tropotaxis
(trōˌpə-tăkˈsĭs, trŏpˌə-)
noun The movement or orientation of an organism in response to two stimuli, especially lights, by means of different sense organs.
Related Forms:
- troˌpo·tacˈtic (-tăkˈtĭk) adjective
- troˌpo·tacˈti·cal·ly adverb