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subnuclear particle

American  
[suhb-noo-klee-er, -nyoo-, -kyuh-ler] / sʌbˈnu kli ər, -ˈnyu-, -kyə lər /

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.

Pronunciation

See nuclear.

Etymology

Origin of subnuclear particle

First recorded in 1960–65; sub- + nuclear

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.