| pulmonata | <zoology> 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 Limnaea and Planorbis. Origin: NL, from L. Pulmo, -onis, a lung. Source: Websters Dictionary (01 Mar 1998) |
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