aurateChem.|ˈɔːreɪt| [f. L. aur-um + -ate4.] A compound of auric oxide with a base. 1838Penny Cycl. XI. 292/1 Auric acid..combines with potash, soda, and barytes, to form..aurates.1862Pepper Play-bk. Metals 207 Aurate of ammonia, or fulminating gold.