tropotaxis
[trop-uh-tak-sis, troh-puh-]
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.
Compare klinotaxis.
Origin of tropotaxis
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019