n. 触须, 触手, 触角

[医] 触角, 触须

Tentacle \Ten"ta*cle\, n. [NL. tentaculum, from L. tentare to
handle, feel: cf. F. tentacule. See {Tempt}.] (Zo["o]l.)
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.

{Tentacle sheath} (Zo["o]l.), a sheathlike structure around
the base of the tentacles of many mollusks.