/ Thesaurus / J Synonyms of junk dna Find synonyms for: Noun1. junk DNA, deoxyribonucleic acid, desoxyribonucleic acid, DNAusage: stretches of DNA that do not code for genes; "most of the genome consists of junk DNA"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language