- an electron ejected from an atom, molecule, or solid by an incident photon
WordReference Random House Unabridged Dictionary of American English © 2026
pho•to•e•lec•tron
(fō′tō i lek′tron),USA pronunciation n. [Physics.]
- Physicsan electron emitted from a system by the photoelectric effect.
- photo- + electron 1910–15
Collins Concise English Dictionary © HarperCollins Publishers::
photoelectron /ˌfəʊtəʊɪˈlɛktrɒn/ n
'photoelectron' also found in these entries (note: many are not synonyms or translations):