[a. L. tactor, agent-n. from tangĕre to touch.] A feeler; an organ of touch.
1817. Kirby & Sp., Entomol., xxiii. (1818), II. 312. Some woodlice … use them as tactors, touching the surface on each side with them, as they go along.
1835. Kirby, Hab. & Inst. Anim., II. xvii. 113. Cuvier regards them [barbs of some fishes] as a kind of tactors.
