We don't have synonyms for electron pair yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are electron pairs.
(n) :
(chemistry, physics) Two electrons having opposite spin but all other quantum numbers the same; i.e. two electrons in the same atomic orbital or molecular orbital, especially such electrons that function in concert to form a covalent bond
(n) :
(chemistry, physics) Two electrons having opposite spin but all other quantum numbers the same; i.e. two electrons in the same atomic orbital or molecular orbital, especially such electrons that function in concert to form a covalent bond