/ Dictionary / Index T teschenite: Meaning and Definition of Find definitions for: tesch•en•ite Pronunciation: (tesh'u-nīt"), [key] — n. a coarse-grained igneous rock consisting of plagioclase, olivine, and augite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. terza rima TESL Related Content Daily Word Quiz: draconian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language