A ribonucleoside is a type of nucleoside including ribose as a component. An example is cytidine. ...
<biochemistry> A nucleoside in which purine or pyrimidine base is linked to a ribose molecule. ... (09 Oct 1997) ... 
(ri″bo-noo´kle-o-sīd) a nucleoside in which the purine or pyrimidine base is combined with ribose.
Type: Term Pronunciation: rī′bō-nū′klē-ō-sīd Definitions: 1. A nucleoside in which the sugar component is ribose; the common ribonucleosides of RNA are adenosine, cytidine, guanosine, and uridine.