elementary particle


elementary particle

noun

physics : a particle (such as an electron or proton) that is smaller than an atom and does not appear to be made up of a combination of more basic things

Full Definition of ELEMENTARY PARTICLE

:  any of the particles of which matter and energy are composed or which mediate the fundamental forces of nature; especially :  one whose existence has not been attributed to the combination of other more fundamental entities

First Known Use of ELEMENTARY PARTICLE

1934

elementary particle

noun    (Medical Dictionary)

Medical Definition of ELEMENTARY PARTICLE

1
: any of the particles of which matter and energy are composed or which mediate the fundamental forces of nature; especially : one (as the photon or the electron) whose existence has not been attributed to the combination of other more fundamental entities
2
: one of the structural units of mitochondrial cristae that are observable by the electron microscope usually as spheres or stalked spheres and are probably the seat of fundamental energy-producing reactions

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