Siphonobranchiata
Pronunciation : Si`pho*no*bran`chi*a"ta
Part of Speech : n.
Etymology : [NL. See Siphon, and Branchia.] (Zo?l.)
Definition : Defn: A tribe of gastropods having the mantle border, on one or both sides, prolonged in the form of a spout through which water enters the gill cavity. The shell itself is not always siphonostomatous in this group.
pl.
Source : Webster's Unabridged Dictionary, 1913