Definify.com

Webster 1828 Edition

Noun.

[sea and mouse.] A marine animal of the genus Aphrodita.

See also: sea mouse

A seamouse (Aphrodita aculeata)

seamouse ‎(plural seamice)

Polychaete worm of genus Aphrodita, especially (Aphrodita aculeata), found in the North Atlantic and in European seas.