'positive thigmotaxis' definitions:
Definition of 'positive thigmotaxis'
From: GCIDE
- Thigmotaxis \Thig`mo*tax"is\, n. [NL., fr. Gr. ? touch + ? an arranging.] (Physiol.) The property possessed by living protoplasm of contracting, and thus moving, when touched by a solid or fluid substance.
- Note: When the movement is away from the touching body, it is negative thigmotaxis; when towards it, {positive thigmotaxis}. [Webster 1913 Suppl.]