Hydrogen-sulfide meaning

A colorless, flammable poisonous gas, H2 S, having a characteristic rotten-egg odor and used in metallurgy, and as an antiseptic, bleach, and reagent.
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A flammable, poisonous gas, H2S, with the characteristic odor of rotten eggs, widely used as a reagent in analytical chemistry.
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A colorless, poisonous gas that smells like rotten eggs. It is formed naturally by decaying organic matter and is the smelly component of intestinal gas. It is also emitted by volcanoes and fumaroles. Hydrogen sulfide is used in the petroleum, rubber, and mining industries, and in making sulfur. Chemical formula: H2S.
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(inorganic chemistry) A toxic gas, H2S, smelling like rotten eggs and used in analytical chemistry and industry.
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