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The Collaborative International Dictionary

Mercurous \Mer*cu"rous\, a. (Chem.) Of, pertaining to, or derived from, mercury; containing mercury; -- said of those compounds of mercury in which it is present in its highest proportion.

Mercurous chloride. (Chem.) See Calomel.


a. 1 (context chemistry English) Pertaining to or derived from mercury. 2 (context chemistry English) Of a compound, containing mercury with an oxidation number of 1.


adj. of or containing mercury [syn: mercuric]

Usage examples of "mercurous".

What passes for air on Venus has layers of red mercuric sulfide and mercurous chloride in the lower reaches, and when you get above them to those pretty fluffy clouds tourists see on the way down, you find that some of them are droplets of sulfuric and hydrochloric and hydrofluoric acid.

Many small bottles and vials: tartar emetic, mercurous chloride, syrup of squill, tincture of opium.