gnathostoma Meaning, Definition & Usage

Gna*thos"to*ma noun plural

Etymology

NL., from Gr. the jaw + , , the mouth.

Definitions

1. (Zoöl.) 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.