from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Emission of electrons from the surface of a substance as a result of bombardment by electrons or ions.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The emission of electrons from the surface of a solid when bombarded with electrons or other charged particles
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the emission of electrons from a surface that is bombarded by higher energy primary electrons
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