field emission


noun Physics.

the removal of electrons from a metallic conductor by a strong electric field.

Origin of field emission

First recorded in 1925–30

British Dictionary definitions for field emission

field emission

noun

the emission of electrons from a solid or liquid subjected to a high electric field

Scientific definitions for field emission

field emission

The emission of electrons from the surface of a conductor, caused by a strong electric field. Field emission is used to create electron beams in certain electron microscopes, as well as in flat-panel computer and television displays, in which the electron beams produce light by striking a phosphor-coated screen.