'Sea snail' definitions:

Definition of 'sea snail'

From: WordNet
noun
Small tadpole-shaped cold-water fishes with pelvic fins forming a sucker; related to lumpfish [syn: snailfish, seasnail, sea snail, Liparis liparis]

Definition of 'Sea snail'

From: GCIDE
  • Sea snail \Sea" snail`\ (Zool.) (a) A small fish of the genus Liparis, having a ventral sucker. It lives among stones and seaweeds. (b) Any small creeping marine gastropod, as the species of Littorina, Natica, etc. [1913 Webster]