ribonucleoside

[ rahy-boh-noo-klee-uh-sahyd, -nyoo- ]

noun

, Biochemistry.

1. a ribonucleotide precursor that contains ribose and a purine or pyrimidine base.

Word History and Origins

Origin of ribonucleoside¹

First recorded in 1930–35; ribo(nucleic acid) + nucleoside

Example Sentences

These are produced in many Gammaproteobacteria by a ribonucleotide reductase that acts on the corresponding ribonucleoside triphosphates.

From Science Magazine