/ Thesaurus / R Synonyms of restriction site Find synonyms for: Noun1. restriction site, site, situationusage: the specific sites at which a restriction enzyme will cleave DNAWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language