/ Dictionary / Index T tin pyrites: Meaning and Definition of Find definitions for: tin' pyri'tes Pronunciation: [key] — Mineral. Mineral. stannite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tin-pot tinsel Related Content Daily Word Quiz: wizened Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language