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subnuclear particle

[ suhb-noo-klee-er, -nyoo-or, by metathesis, -kyuh-ler ]

noun

, Physics.
  1. any of the elementary particles, including those that do not exist in stable matter but appear as a result of high-energy collisions of other particles or nuclei.

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Pronunciation Note

See nuclear.

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Word History and Origins

Origin of subnuclear particle1

First recorded in 1960–65; sub- + nuclear

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