/ Dictionary / Index T Tethys: Meaning and Definition of Find definitions for: Te•thys Pronunciation: (tē'this), [key] — n. a Titan, a daughter of Uranus and Gaea, the wife of Oceanus and mother of the Oceanids and river gods. one of the moons of Saturn. the Mesozoic ocean or seaway of which the Mediterranean Sea is a greatly shrunken remnant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tethys (Thesaurus) tetherball Tet offensive Related Content Daily Word Quiz: ravenous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language