/ Dictionary / Index T Tiros: Meaning and Definition of Find definitions for: Ti•ros Pronunciation: (tī'rōs), [key] — n. U.S. Aerospace. one of a series of satellites for transmitting television pictures of the earth's cloud cover. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tiros (Thesaurus) Tirolese Tirpitz Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language