(greek mythology) A Titaness and sea goddess who was both sister and wife of Oceanus.
A satellite of Saturn.
(gr. myth., person, proper) A daughter of Uranus and wife of Oceanus, by whom she is the mother of the Oceanides.
(place, proper) A satellite of Saturn having long trenchlike valleys and sharing its orbit with other satellites.
(place) Any of various ancient seas and geosynclines, esp. any of those of the Mesozoic and early Cenozoic eras that separated Laurasia from Gondwana.
Origin of tethys
- Latin Tēthys from Greek Tēthus
From American Heritage Dictionary of the English Language, 5th Edition