hexose phosphate noun : a phosphoric derivative of a hexose (as glucose phosphate) of which two types have been found in living tissues as intermediates of carbohydrate metabolism: a.orhexose monophosphate: a mono-phosphoric ester or acylal C6H11O5(OPO3H2) b.orhexose diphosphate: a diphosphoric ester C6H10O4(OPO3H2)2