of or belonging to a subclass (Pulmonata) of gastropods having a sort of lung or air sac, as the land snails and slugs, and most freshwater snails
noun
any member of this subclass
See pulmonate in American Heritage Dictionary 4
(po͝olˈmə-nātˌ, pŭlˈ-)
adjective
Having lungs or lunglike organs.
Of or belonging to the Pulmonata, a subclass of gastropods including terrestrial snails and slugs and certain freshwater snails that are capable of breathing air through lunglike sacs.