Definitions

1. noun

A nitrogenous base found in RNA, where it is paired with adenine, and in DNA, where it is paired with guanine.

“The genetic code for the protein is based on the sequence of uracil and adenine in the mRNA.”

2. chemistry

A naturally occurring heterocyclic amine, C4H5N2O2, used in the synthesis of other compounds.

“The uracil molecule is crucial in the production of various chemical compounds.”