gastropod

n. member of the mollusk family (i.e. snails, slugs, etc.)

The gastropods, also previously known as gasteropods, or univalves, and more commonly known as snails and slugs, are the largest and most successful class of mollusks, with 60,000-75,000 known living species. This class of animals is second only to insects in its size and diversity. The class Gastropoda includes very large numbers of marine snails and sea slugs, as well as the freshwater snails, and the terrestrial (land) snails and slugs. Although the word snail can be applied to all the members of this class, commonly the word snail is restricted only to those species which have an external shell. Those without a shell or with only a very reduced or internal shell are often known as slugs.
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Noun
1. a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes
(synonym) univalve
(hypernym) mollusk, mollusc, shellfish
(hyponym) abalone, ear-shell
(member-holonym) Gastropoda, class Gastropoda, Gasteropoda, class Gasteropoda

(n.)
One of the Gastropoda.
  

gastropod