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Definition of: arsine
(är·sēn′, är′sēn, är′sin) noun
1. A poisonous, inflammable, gaseous compound, AsH3, with a nauseous odor, used as an agent of chemical warfare in shells, etc.
2. Any of various derivatives of this compound in which the hydrogen atom is replaced by a radical. [<ARS(ENIC) + -INE2]
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