/ Thesaurus / A Synonyms of angle of extinction Find synonyms for: Noun1. angle of extinction, extinction angle, angleusage: the angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized lightWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language