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negative glow

noun, Physics.
1.
the luminous region between the Crookes dark space and the Faraday dark space in a vacuum tube, occurring when the pressure is low.
Origin
1885-1890
1885-90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word of The Day

Difficulty index for negative glow

Few English speakers likely know this word

Word Value for negative

12
15
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