field emission

noun Physics.

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

Nearby words

  1. field current,
  2. field day,
  3. field dependence,
  4. field drain,
  5. field effect transistor,
  6. field event,
  7. field exercise,
  8. field glass,
  9. field glasses,
  10. field goal

Origin of field emission

First recorded in 1925–30 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for field emission

field emission


the emission of electrons from a solid or liquid subjected to a high electric field
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.