/ Thesaurus / P Synonyms of photopigment Find synonyms for: Noun1. photopigment, pigmentusage: a special pigment found in the rods and cones of the retinaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inane Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language