/ Thesaurus / C Synonyms of cd8 Find synonyms for: Noun1. cluster of differentiation 8, CD8, glycoproteinusage: a membrane glycoprotein that is found primarily on the surface of cytotoxic T cellsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language