| a white, crystalline, water-soluble, strongly acrid, highly poisonous solid, HgCl2, prepared by sublimation of chlorine with mercury, and used chiefly as an antiseptic. |
| mercuric chloride n. A poisonous white crystalline compound, HgCl2, used as an antiseptic and a disinfectant, in insecticides, preservatives, and batteries, and in metallurgy and photography. Also called corrosive sublimate. |
mercuric chloride n.
A poisonous white crystalline compound used as an antiseptic and a disinfectant.