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tropotaxis

American

[trop-uh-tak-sis, troh-puh-] / ˌtrɒp əˈtæk sɪs, ˌtroʊ pə- /

noun

Zoology.

straight movement by an organism toward or away from a source of stimulation as a result of comparing information received by paired sensory receptors on both sides of the body.

First recorded in 1930–35; tropo- + -taxis

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023