a compound of mercury, usually existing as a black solid (metacinnabarite) or a red solid (cinnabar or vermilion), which is used as a pigment. Formula: HgS: Systematic name: mercury(II) sulphide
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How to use mercuric sulphide in a sentence
Metacinnabarite is a cubic form of mercuric sulphide, this compound being dimorphous.
There are two varieties of mercuric sulphide, the red and the black; unfortunately the red is liable to change into the black.Illumination and its Development in the Present Day | Sidney Farnsworth