Definitions for riboseˈraɪ boʊs
Random House Webster's College Dictionary
a white, crystalline, water-soluble, slightly sweet solid, C5H10O5, a pentose sugar obtained by the hydrolysis of RNA.
Origin of ribose:
< G Ribose, earlier Ribonsӓure (1891) =Ribon (from Arabinosearabinose , by arbitrary rearrangement and shortening) +Sӓure acid
a pentose sugar important as a component of ribonucleic acid
A naturally occurring pentose sugar, which is a component of the nucleosides and nucleotides that comprise the nucleic acid biopolymer, RNA. It is also found in riboflavin.
U.S. National Library of Medicine
A pentose active in biological systems usually in its D-form.