/ Dictionary / Index T terrane: Meaning and Definition of Find definitions for: ter•rane Pronunciation: (tu-rān', ter'ān), [key] — n. Geol. any rock formation or series of formations or the area in which a particular formation or group of rocks is predominant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Terramycin terrapin Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language