/ Dictionary / Index T titanosaur: Meaning and Definition of Find definitions for: ti•tan•o•saur Pronunciation: (tī-tan'u-sôr", tīt'n-u-), [key] — n. any amphibious plant-eating dinosaur of the genus Titanosaurus, from the Cretaceous Period, having a long, thin neck and a long, whiplike tail. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: titanosaur (Thesaurus) titanium white titanothere Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language