n.
Pronunciation: ' r ī - ˌ b ō s, - ˌ b ō z
Function: noun
Etymology: International Scientific Vocabulary, from ribonic acid an acid C 5 H 10 O 6 obtained by oxidation of ribose
Date: 1892
: a pentose C 5 H 10 O 5 found especially in the dextrorotatory form as a component of many nucleosides (as adenosine and guanosine) especially in RNA