Lewis acid

noun
Lew·is acid | \ ˈlü-əs- \

Definition of Lewis acid 

: a substance that is capable of accepting an unshared pair of electrons from a base to form a covalent bond

First Known Use of Lewis acid

1944, in the meaning defined above

History and Etymology for Lewis acid

Gilbert N. Lewis †1946 American chemist

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The first known use of Lewis acid was in 1944

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