a. [f. L. aur-um gold + -IC.] Of or pertaining to gold. Applied in Chem. to compounds in which gold combines as a triad, e.g., Auric Iodide Au I2, Auric oxide (or acid), Au2 O3.
1838. Penny Cycl., XI. 292/1. Teroxide of Gold has been called auric acid.
1876. Bartholow, Mat. Med. (1879), 209. These auric preparations promote the appetite.