pulmonata Meaning, Definition & Usage

  1. noun large order of gastropods usually breathing by means of a lung-like sac comprising most land snails and slugs and many freshwater snails
    order Pulmonata.

WordNet

Pul`mo*na"ta noun plural
Etymology
NL., from L. pulmo, -onis, a lung.
Definitions
  1. (Zoöl.) 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.

Webster 1913