/ Thesaurus / E Synonyms of experimental extinction Find synonyms for: Noun1. extinction, experimental extinction, conditioningusage: a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulusWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language