/ Dictionary / Index P prosthetic group: Meaning and Definition of Find definitions for: prosthet'ic group" Pronunciation: [key] — Biochem. Biochem. the nonprotein acid constituent of a conjugate protein, as the heme group of hemoglobin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prosthetic dentistry prosthetics Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language