Sea Slug Definition

noun
Any of various highly colorful marine gastropods of the suborder Nudibranchia, lacking a shell and gills but having fringelike projections that serve as respiratory organs.
American Heritage
Webster's New World
Any of various other marine gastropods that lack a shell or have a reduced shell.
American Heritage
Synonyms:

Other Word Forms of Sea Slug

Noun

Singular:
sea slug
Plural:
sea slugs

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sea slug