1) Sugar acid 
Aldaric acids are a group of sugar acids, where the terminal hydroxyl groups of the sugars have been replaced by terminal carboxylic acids, and are characterised by the formula HOOC-(CHOH)n-COOH. ==Synthesis== Aldaric acids are usually synthesized by the oxidation of aldoses with nitric acid. In this reaction it is the open-chain (polyhydroxyaldeh...
One of a group of sugar acids characterised by the formula HOOC-(CHOH)n-COOH; e.g., saccharic acid. ... (05 Mar 2000) ... 
Type: Term Pronunciation: al′dar-ik as′id Definitions: 1. One of a group of sugar acids; glucaric acid.