Bible Dictionaries
Nathostoma

Webster's Dictionary

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

Bibliography Information
Webster, Noah. Entry for 'Nathostoma'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​n/nathostoma.html. 1828.