Tethys definition by Webster's New World
- Gr. Myth. a daughter of Uranus and wife of Oceanus, by whom she is the mother of the Oceanides
- a satellite of Saturn having long trenchlike valleys and sharing its orbit with other satellites
Origin: Classical Latin ; from Classical Greek Tēthys
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an ancient sea and geosyncline, especially of the Mesozoic and early Cenozoic eras that separated Laurasia from Gondwana
Tethys definition by American Heritage Dictionary
- Greek Mythology A Titaness and sea goddess who was both sister and wife of Oceanus.
- A satellite of Saturn.
Origin: Latin Tēthys, from Greek Tēthus.