- any substance capable of forming a covalent bond with an acid by transferring a pair of electrons to it.
Origin of Lewis base
First recorded in 1960–65; named after G. N. Lewis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a substance capable of donating a pair of electrons to an acid to form a covalent bondCompare Lewis acid
C20: named after G. N. Lewis (1875–1946), US chemist