/ Dictionary / Index P pentlandite: Meaning and Definition of Find definitions for: pent•land•ite Pronunciation: (pent'lun-dīt"), [key] — n. a mineral, sulfide of nickel, occurring in the form of bronze-colored granular aggregates, found with pyrrhotite: the principal source of nickel. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pentlandite (Thesaurus) pentimento pentobarbital Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language