electron pair

noun

1. Chemistry.,  two electrons occupying the same orbital in an atom or molecule; two electrons working together, especially forming a nonpolar covalent bond between atoms.

2. Physics.,  an electron and a positron produced in a reaction, as by a high-energy photon.

electron pair

1. Two electrons functioning or regarded as functioning together, especially two electrons that form a covalent bond between atoms.

2. An electron and a positron produced by a high-energy photon.

Word History and Origins

Origin of electron pair¹

First recorded in 1930–35