Uridine, a nucleoside, contains an uracil attached to a ribose ring (known as a ribofuranose) via a β-N1-glycosidic bond. If uracil is attached to a deoxyribose ring, it is known as a deoxyuridine. ==Dietary sources of uridine == Uridine is one of the four basic components of ribonucleic acid (RNA); the other three are adenosine, guanosine, and c...
<biochemistry> The ribonucleoside formed by the combination of ribose and uracil. ... (18 Nov 1997) ... 
(ūr´ĭ-dēn) a ribonucleoside containing uracil. uridine diphosphate(UDP) a nucleotide that participates in glycogen metabolism and in some processes of nucleic acid synthesis.
The ribonucleoside formed by the combination of ribose and uracil.
(Urd) Type: Term Pronunciation: yūr′i-dēn Definitions: 1. one of the major nucleosides in RNAs; as the pyrophosphate (UDP, UDPG, etc.), uridine is active in sugar metabolism. Synonyms: 1-β-d-ribofuranosyluracil
a ribonucleoside composed of ribose and uracil.