WordReference Random House Unabridged Dictionary of American English © 2026
thig•mot•ro•pism
(thig mo′trə piz′əm),USA pronunciation n. [Biol.]
thig•mo•trop•ic
(thig′mə trop′ik, -trō′pik),USA pronunciation adj.
- Biologyoriented growth of an organism in response to mechanical contact, as a plant tendril coiling around a string support.
- Greek thígm(a) touch + -o- + -tropism
- 1895–1900;