Particle physics Mass In particle physics, a massive particle is an elementary particle with non-zero rest mass while a massless particle has zero rest mass. [14]: 436 The photon and gluon are massless. …

4 days ago · The meaning of PARTICLE is a minute quantity or fragment. How to use particle in a sentence.

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Mar 8, 2026 · The word “particle” means different things in physics, chemistry, biology, and environmental science. Here’s what it actually refers to in each field.

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PARTICLE definition: a minute portion, piece, fragment, or amount; a tiny or very small bit. See examples of particle used in a sentence.

PARTICLE definition: 1. a word or a part of a word that has a grammatical purpose but often has little or no meaning…. Learn more.

Apr 11, 2026 · Particle physics, Study of the fundamental subatomic particles, including both matter (and antimatter) and the carrier particles of the fundamental interactions as described by quantum field …

A particle is a small piece of anything. Particle can also refer to a subatomic particle with mass and structure, but takes up hardly any space at all.