'Gnathostomata' definitions:
Definition of 'Gnathostomata'
(from WordNet)
noun
Comprising all vertebrates with upper and lower jaws [syn: Gnathostomata, superclass Gnathostomata]
Definition of 'Gnathostomata'
From: GCIDE
- Gnathostoma \Gna*thos"to*ma\, n. pl. [NL., from Gr. gna`qos the jaw + ?, ?, the mouth.] (Zool.) A comprehensive division of vertebrates, including all that have distinct jaws, in contrast with the leptocardians and marsipobranchs (Cyclostoma), which lack them. [Written also Gnathostomata.]