phosphine

noun
phos·​phine | \ˈfäs-ˌfēn \

Definition of phosphine 

1 : any of various derivatives of phosphine analogous to amines but weaker as bases

2 : a colorless poisonous flammable gas PH3 that is a weaker base than ammonia and that is used especially to fumigate stored grain

First Known Use of phosphine

1868, in the meaning defined at sense 2

History and Etymology for phosphine

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The first known use of phosphine was in 1868

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More Definitions for phosphine

phosphine

noun
phos·​phine | \-ˌfēn \

Medical Definition of phosphine 

1 : a colorless poisonous flammable gas PH3 that is a weaker base than ammonia and that is used especially to fumigate stored grain

2 : any of various derivatives of phosphine analogous to amines but weaker as bases

More from Merriam-Webster on phosphine

Britannica.com: Encyclopedia article about phosphine

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