Phosphine definition

fŏsfēn
A colorless, spontaneously flammable poisonous gas, PH3 , having a fishy odor and used as a fumigant and as a doping agent for solid-state components.
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Hydrogen phosphide, PH3, a colorless, poisonous, flammable gas with a garliclike odor.
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A synthetic yellow dye.
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(chemistry, uncountable) A toxic gas; hydride of phosphorus, PH3
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(chemistry, countable) Any alkyl or aryl derivative of this compound, PR3 (where at least one R is not H)
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Any of several organic compounds having the structure of an amine but with phosphorus in place of nitrogen.
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Other Word Forms

Noun

Singular:
phosphine
Plural:
phosphines

Origin of phosphine