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Webster 1913 Edition
Aplysia
‖
A-plys′i-a
,Noun.
[Gr. [GREEK] a dirty sponge, fr. [GREEK] unwashed;
ἀ
priv. + [GREEK] to wash.] (Zool.)
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.