Noun
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.
Source: Webster's dictionaryJournal of Neurophysiology, 75: 2268–2279 Learning and memory using nociceptors in the sea hare, Aplysia has been described. Source: Internet
Regulation of low-threshold afferent activity may contribute to short-term habituation in Aplysia californica. Source: Internet