Submitted by György Chityil ... on Fri, 01/19/2018 - 22:14 Hierarchy: NounDescription: {{context|enzyme|genetics}} Any of a group of enzymes which cleave single nucleotides from the end of a polynucleotide (DNA or RNA) chain.Ngram: exonucleaseNgram Text: exonucleaseSource: WiktionaryIssue: 0Wiktionary tag: enzymegeneticsNgram Count: 1