/ Dictionary / Index H hedenbergite: Meaning and Definition of Find definitions for: hed•en•berg•ite Pronunciation: (hed'n-bur-gīt"), [key] — n. a contact metamorphic mineral of the pyroxene family, calcium ferrous silicate, CaFe(SiO), that forms black prismatic crystals in crystalline limestone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. heddle heder* Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language