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Word of the Day Wednesday, June 10, 2026

exonuclease

/ˌɛksəˈnuːkleɪz/ noun · British & US
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What does exonuclease mean?

noun

An enzyme that removes nucleotides from the end of a DNA or RNA molecule. Exonucleases are involved in various cellular processes, including DNA repair and replication.

Example

"The researcher used exonuclease to break down the DNA molecule into smaller fragments for analysis."

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

Etymologically related

Synonyms for exonuclease

Rhymes with exonuclease