1) Cytidine 2) Nucleoside 1) Cytidine 
Deoxycytidine is a deoxyribonucleoside, a component of deoxyribonucleic acid. It is similar to the ribonucleoside cytidine, but with one hydroxyl group removed from the 2` position. ...
A drug that protects healthy tissues from the toxic effects of anticancer drugs.
<chemical> Chemical name: Cytidine, 2'-deoxy- ... (12 Dec 1998) ... 
Type: Term Pronunciation: dē-oks′ē-sī′ti-dēn Definitions: 1. 2′-Deoxyribosylcytosine, one of the four major nucleosides of DNA (the others being deoxyadenosine, deoxyguanosine, and thymidine).
[n] - a nucleoside component of DNA
cytidine noun a nucleoside component of DNA; composed of cytosine and deoxyribose