Webster's 1913 Dictionary
PULMONATA
Pul `mo *na "ta, n. pl. Etym: [NL. , from L. pulmo, -onis, a lung. ](Zoöl.)
Defn: An extensive division, or sub-class, of hermaphrodite gastropods, in which the mantle cavity is modified into an air- breathing organ, as in Helix, or land snails, Limax, or garden slugs, and many pond snails, as Limnæa and Planorbis.
New American Oxford Dictionary
Pulmonata
Pul mo na ta |ˌpo͝olməˈnätə, pəl -, -ˈnātə ˌpʊlməˈnɑtə |Zoology a group of mollusks that includes the land snails and slugs and many freshwater snails. They have a modified mantle cavity that acts as a lung for breathing air. [Subclass Pulmonata, class Gastropoda. ] ORIGIN modern Latin (plural ), from Latin pulmo, pulmon- ‘lung. ’
Oxford Dictionary
Pulmonata
Pulmonata |ˌpʌlməˈneɪtə | ▶plural noun Zoology a group of molluscs which includes the land snails and slugs and many freshwater snails. They have a modified mantle cavity which acts as a lung for breathing air. ●Subclass Pulmonata, class Gastropoda. ORIGIN modern Latin (plural ), from Latin pulmo, pulmon- ‘lung ’.
The Wordsmith Dictionary