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nuclear emulsion

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noun Physics.
a photographic emulsion in the form of a thick block, used to record the tracks of elementary particles.
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Which of the following words means “to make a crackling sound; crackle”?
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Origin of nuclear emulsion

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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