1. Glyceroyl phosphoric acid; glyceroyl phosphate; an acid anhydride between glyceric acid and phosphoric acid. 2. 2-P.; the deprotonated form, 2-phosphoglycerate, is an intermediate in glycolysis. 3. 3-P.; the deprotonated form, 3-phosphoglycerate, is an intermediate in glycolysis.
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phos·pho·gly·cer·ic acid -glis-.er-ik- n either of two isomeric phosphates HOOCC2H3(OH)OPO3H2 of glyceric acid that are formed as intermediates in photosynthesis and in carbohydrate metabolism
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phos·pho·gly·cer·ic ac·id (fos″fo-glĭ-serґik) a phosphate ester of glyceric acid.Medical dictionary. 2011.