H. sulphide, H2S, a colorless, inflammable gas of fetid odor, formed in the decomposition of organic matter containing sulphur.
Hydrogen monosulphid, sulphur hydrid. A colorless gas, H2S, having a strong, disagreeable odor of rotten eggs and a sweetish taste, condensing under pressure into a colorless liquid. It has been used by rectal injection as a remedy for pulmonary tuberculosis. [Gr.]