subatomic particle

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Related to Basic particles: high energy physics

subatomic particle

n.
Any of various units of matter below the size of an atom, including the elementary particles and hadrons.
References in periodicals archive ?
So here we have a way of determining when some basic particles jointly coincide with a substance that is intrinsically one thing.
Observations of cosmic rays and experiments with atom smashers, though, disclosed numerous other seemingly basic particles, with weird names like pion, lambda, delta and sigma, threatening to exhaust the Greek alphabet.
According to what physicists call the "standard model" of the universe, particles such as protons and neutrons are themselves made up of even more basic particles called quarks.

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