subatomic particle
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n.
Any of various units of matter below the size of an atom, including the elementary particles and hadrons.
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Words nearby subatomic particle
subastral, subastringent, subatmospheric, subatom, subatomic, subatomic particle, subatomic particles, subaudition, subauricular, subaxial, subaxillary
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Scientific definitions for subatomic particle
subatomic particle
[ sŭb′ə-tŏm′ĭk ]
Any of various particles of matter that are smaller than a hydrogen atom. Protons, neutrons, and electrons are subatomic particles, as are all hadrons and leptons. See also composite particle elementary particle.
The American Heritage® Science Dictionary
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