Definition of isoelectronic
: having the same number of electrons or valence electrons
isoelectronicallyplay \-ni-k(ə-)lē\ adverb
Origin and Etymology of isoelectronic
International Scientific Vocabulary
First Known Use: 1926
Seen and Heard
What made you want to look up isoelectronic? Please tell us where you read or heard it (including the quote, if possible).