<zoology> A comprehensive division of vertebrates, including all that have distinct jaws, in contrast with the leptocardians and marsipobranchs (Cyclostoma), which lack them.

Alternative forms: Gnathostomata.

Origin: NL, from Gr. The jaw +, the mouth.

(01 Mar 1998)

gnathopodite, gnathoschisis, gnathostatics < Prev | Next > gnathostomiasis, gnathotheca, gnatling

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