Breadcrumb Home > Thesaurus > P Synonyms of pentlandite Find synonyms for: Noun1. pentlandite, mineralusage: a mineral (iron and nickel sulphide) that is the chief ore of nickelWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of pentlandite (Dictionary) ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language