||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.

&fist; When the movement is away from the touching body, it is negative thigmotaxis; when towards it, positive 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.

&fist; When the movement is away from the touching body, it is negative thigmotaxis; when towards it, positive thigmotaxis.