Also found in: Dictionary, Acronyms, Encyclopedia, Wikipedia.
a ribonucleoside containing uracil.
uridine diphosphate (UDP) a nucleotide that participates in glycogen metabolism and in some processes of nucleic acid synthesis.
A uridine-containing nucleotide important in certain metabolic reactions, in which it transports sugars such as glucose and galactose.
See also: uridine