field-emission microscope

[feeld-i-mish-uhn]

field-e·mis·sion mi·croscope

[feeld-i-mish-uhn]
noun
a device in which electrons liberated by field emission are accelerated toward a fluorescent screen to form a magnified image of the emitting surface.


Origin:
1950–55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Field-emission microscope has a plethora of syllables.
So is pneumonoultramicroscopicsilicovolcanoconiosis. Does it mean:
an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.
opposition to the withdrawal of state support or recognition from an established church, esp. the Anglican Church in 19th-century England.
WordNet
field-emission microscope

noun
electron microscope used to observe the surface structure of a solid 
WordNet® 3.0, © 2006 by Princeton University.
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