Asiphonida :: Asiphonida (n. pl.) A group of bivalve mollusks destitute of siphons, as the oyster; the asiphonate mollusks..
Siphonia :: Siphonia (n.) A former name for a euphorbiaceous genus (Hevea) of South American trees, the principal source of caoutchouc..
Siphonic :: Siphonic (a.) Of or pertaining to a siphon.
Siphonifer :: Siphonifer (n.) Any cephalopod having a siphonate shell.
Siphoniferous :: Siphoniferous (a.) Siphon-bearing, as the shell of the nautilus and other cephalopods..
Siphonium :: Siphonium (n.) A bony tube which, in some birds, connects the tympanium with the air chambers of the articular piece of the mandible..