electron optics

noun (used with a singular verb)

the study and use of the physical and optical properties of beams of electrons under the influence of electric or magnetic fields.

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decorum
the act of or need for making up one's mind.
dignified propriety of behavior, speech, dress, etc.
a company of singers, especially an organized group employed in church service.
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Origin of electron optics

First recorded in 1915–20

Words nearby electron optics

electron lens, electron micrograph, electron microscope, electron multiplier, electron neutrino, electron optics, electron pair, electron paramagnetic resonance, electron probe microanalysis, electron radiography, electron spin resonance
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for electron optics

electron optics

noun

(functioning as singular) the study and use of beams of electrons and of their deflection and focusing by electric and magnetic fields
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