tethys Meaning, Definition & Usage
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noun (Greek mythology) a Titaness and sea goddess; wife of Oceanus
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noun type genus of the family Aplysiidae
Aplysia; genus Tethus; genus Aplysia.
WordNet
Te"thys noun
Etymology
NL., fr. Gr. an oyster, or a kind of ascidian.Definitions
(Zoöl.) A genus of a large naked mollusks having a very large, broad, fringed cephalic disk, and branched dorsal gills. Some of the species become a foot long and are brilliantly colored.