/ Dictionary / Index T tortoise: Meaning and Definition of Find definitions for: tor•toise Pronunciation: (tôr'tus), [key] — n. a turtle, esp. a terrestrial turtle. a very slow person or thing. testudo (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tortoise (Thesaurus) tortious tortoise beetle Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language