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Word of the Day Tuesday, June 9, 2026

uracil

/ˈjʊərəsɪl/ noun · British & US
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What does uracil mean?

noun

A purine nucleobase that pairs with thymine in DNA and with adenine in RNA. It is one of the four nucleobases in the nucleic acid of DNA and RNA.

Example

"The genetic code is written in a sequence of nucleotides, with uracil and adenine forming a base pair."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for uracil

Rhymes with uracil

Etymologically related