Entry 1 sense Webster, 1913 Hydrargyrate /(hī̇*drär"jĭ*rā̇t)/ · Hy·drar·gy·rate · IPA 01 a. Of or pertaining to mercury; containing, or impregnated with, mercury. 1. Of or pertaining to mercury; containing, or impregnated with, mercury.[R.]