Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of siphonostomatous is as below...

Siphonostome :: Siphonostome (n.) A siphonostomatous shell.

Siphonobranchiata :: Siphonobranchiata (n. pl.) 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..

Siphonostomata :: Siphonostomata (n. pl.) An artificial division of gastropods including those that have siphonostomatous shells.

Siphonostomatous :: Siphonostomatous (a.) Pertaining to the Siphonostomata.

Siphonostomatous :: Siphonostomatous (a.) Having the front edge of the aperture of the shell prolonged in the shape of a channel for the protection of the siphon; -- said of certain gastropods.

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