ster·e·ot·ro·pism (stěr'ē-ŏt'rə-pĭz'əm, stîr'-) n. See thigmotropism. ster'e·o·trop'ic (-ē-ə-trŏp'ĭk) adj.
thig·mot·ro·pism (thĭg-mŏt'rə-pĭz'əm) n. The turning or bending response of an organism upon direct contact with a solid surface or object. Also called stereotropism.
[Greek thigma, touch; see thigmotaxis + -tropism.] thig'mo·trop'ic (thĭg'mə-trŏp'ĭk, -trō'pĭk)