a. Chem. [f. Gr. ἀμαλ-ός weak, feeble + -IC.] In Amalic acid: C4(CH3)4N4O7 + H2O, a product of the decomposition of caffeine by chlorine; so named from its feeble acid reaction.
1863. Watts, Dict. Chem., I. 161. Amalic acid … with baryta, potash, and soda, forms compounds of a deep violet colour.
1876. Harley, Mat. Med., 705. Amalic acid … stains the skin pink.
