n. [ NL. tentaculum, from L. tentare to handle, feel: cf. F. tentacule. See Tempt. ] (Zool.) A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate animals, being either an organ of sense, prehension, or motion. [ 1913 Webster ]
Tentacle sheath (Zool.),
a. (Zool.) Having tentacles. [ 1913 Webster ]