WordReference Random House Unabridged Dictionary of American English © 2026
i•so•e•lec•tron•ic
(ī′sō i lek tron′ik, -ē′lek-),USA pronunciation adj. [Physics, Chem.]
- Physicsnoting or pertaining to atoms and ions having an equal number of electrons.
- Physicsnoting or pertaining to atoms, radicals, or ions having either an equal number of electrons or an equal number of valence electrons.
- iso- + electronic 1925–30