¹ Source: wiktionary.com
Definition of Thigmotropism
1. [n -S]
Medical Definition of Thigmotropism
1. A movement toward or away from a touch stimulus on the part of a portion of an organism, such as leaves or tendrils. Compare: thigmotaxis. Origin: G. Thigma, touch, + trope, a turning (05 Mar 2000)