from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The science of the control of electron motion by electron lenses in systems or under conditions analogous to those involving or affecting visible light.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the branch of electronics that deals with beams of electrons and their focusing and deflection by magnetic fields
Sorry, no etymologies found.