/ Thesaurus / E Synonyms of erecting prism Find synonyms for: Noun1. erecting prism, prism, optical prismusage: a right-angled optical prism used to turn an inverted image uprightWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language