aplysia Meaning, Definition & Usage

  1. noun type genus of the family Aplysiidae
    genus Tethus; genus Aplysia; Tethys.

WordNet

A*plys"i*a noun
Etymology
Gr. a dirty sponge, fr. unwashed; priv. + to wash.
Definitions
  1. (Zoöl.) A genus of marine mollusks of the order Tectibranchiata; the sea hare. Some of the species when disturbed throw out a deep purple liquor, which colors the water to some distance. See Illust. in Appendix.

Webster 1913