from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The turning or bending response of an organism upon direct contact with a solid surface or object. Also called stereotropism.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Growth or motion in response to touch.
from The Century Dictionary and Cyclopedia
- n. In biology, the movement or growth of an organism in relation to contact with a foreign body; stereotropism. See thigmotaxis.
Greek thigma, touch; see thigmotaxis + -tropism.(American Heritage® Dictionary of the English Language, Fourth Edition)
thigmo- + tropism (Wiktionary)