photoelectron noun. ['fǝʊtǝʊɪlɛktrɒn] E20.
[from PHOTO- + ELECTRON noun².]
Physics. An electron released from an atom by the action of a photon; esp. one emitted from a solid surface under the action of light.

■ photoelec'tronic adjective of or pertaining to a photoelectron, or the interaction of light with electrons E20.

■ photoelec'tronics noun the branch of science and technology that deals with photoelectronic phenomena M20.

[TahlilGaran] English Dictionary ▲