a. Chem. [f. TARTR(O- + AM(MONIUM) + -IC.] In tartramic acid, C4H7NO5, an amidated derivative of tartaric acid. Its salts are Tartramates. Also tartramic ether, a name of ethylic tartramate, obtained by the action of alcoholic ammonia on tartaric ether; also called Tartramethane.
1857. Miller, Elem. Chem., III. 318. It is they [the dibasic acids] only that can furnish the amidated acids, such as the oxamic, tartramic, and lactamic acids.
1868. Watts, Dict. Chem., V. 697. Tartramate of calcium is very soluble in water and forms large tetrahedral crystals.