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photoproton

[foh-toh-proh-ton] /ˌfoʊ toʊˈproʊ tɒn/
noun, Physics.
1.
a proton emitted from a nucleus during photodisintegration.
Origin
1930-1935
1930-35; photo- + proton
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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