noun \ˈrī-ˌbōs, -ˌbōz\

Definition of RIBOSE

:  a pentose C5H10O5 found especially in the dextrorotatory form as a component of many nucleosides (as adenosine and guanosine) especially in RNA

Origin of RIBOSE

International Scientific Vocabulary, from ribonic acid an acid C5H10O6 obtained by oxidation of ribose
First Known Use: 1892


noun \ˈrī-ˌbōs, -ˌbōz\   (Medical Dictionary)

Medical Definition of RIBOSE

: a pentose C5H10O5 found especially in the levorotatory D-form as a constituent of a number of nucleosides (as adenosine, cytidine, and guanosine) especially in RNA


noun    (Concise Encyclopedia)

Five-carbon sugar found in RNA. (In DNA the corresponding sugar is the closely related deoxyribose.) A ribose molecule combined with adenine, guanine, cytosine, or uracil forms a nucleoside; adding a phosphate group forms a nucleotide. The ribose of one nucleotide joins with the phosphate of the next to form the RNA backbone. Ribose phosphates are components of various coenzymes and are used by microorganisms in synthesizing histidine.


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