aprotic

adjective
apro·​tic | \(ˌ)ā-ˈprō-tik \

Definition of aprotic 

of a solvent

: incapable of acting as a proton donor

First Known Use of aprotic

1931, in the meaning defined above

History and Etymology for aprotic

a- entry 2 + proton + -ic entry 1

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The first known use of aprotic was in 1931

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