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Definition of Ribulose
1. Noun. (organic compound carbohydrates) a ketopentose whose phosphate derivatives participate in photosynthesis ¹
¹ Source: wiktionary.com
Medical Definition of Ribulose
1. D-erythro-Pentulose; d-adonose; d-erythro-2-ketopentose;the 2-keto isomer of ribose. As the 5-phosphate, it participates in the pentose monophosphate shunt; as the 1,5-bisphosphate, it combines with CO2 at the start of the photosynthetic process in green plants ("carbon dioxide trap"); d-ribulose is the epimer of d-xylulose. (05 Mar 2000)