Dictionary
u•ra•cil
Pronunciation: (yoor'u-sil), [key]—
n.
Biochem.a pyrimidine base, C
4H
4N
2O
2, that is one of the fundamental components of RNA, in which it forms base pairs with adenine.
Symbol: U
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.