[ten.ta.cle] n [NL tentaculum, fr. L tentare to feel, touch--more at tempt] (1762) 1: any of various elongate flexible usu. tactile or prehensile processes borne by animals and esp. invertebrates chi efly on the head or about the mouth
2. a: something that resembles a tentacle esp. in or as if in grasping or feeling out b: a sensitive hair or emergence on a plant (as the sundew) -- ten.ta.cled adj