Particle

A particle is

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• In particle physics, elementary particle is a basic unit of matter or energy.
• In colloid chemistry, a colloidal particle - phase colloid or molecular colloid
• In ecology, a small object of nonbiological kind.
• In linguistics, a grammatical particle.
• In computer graphics, an element of a particle system (simulation).
• In common use: a very small to insignificant amount. See also grain.
• In music, the band Particle
• In wave physics Particle displacement
• In acoustics Sound particle velocity