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n. Abbr. U
A pyrimidine base, C4H4N2O2, that is an essential constituent of RNA.
(Biochemistry) biochem a pyrimidine present in all living cells, usually in a combined form, as in RNA. Formula: C4H4N2O2
[C20: from uro-1 + acetic + -ile]
u•ra•cil(ˈyʊər ə sɪl)
a pyrimidine base, C4H4N2O2, that is one of the fundamental components of RNA, in which it forms base pairs with adenine. Symbol: U
A base that is a component of RNA, forming a base pair with adenine during transcription.
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|Noun||1.||uracil - a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine|
ribonucleic acid, RNA - (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell; "ribonucleic acid is the genetic material of some viruses"