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Definitions

particle

[pahr-ti-kuhl] / ˈpɑr tɪ kəl /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Light behaves both as a particle and as a wave, and this wave nature introduces a limitation.

From Science Daily • Apr. 5, 2026

This level of control could help researchers explore fundamental questions about gravity, particle motion, and quantum behavior.

From Science Daily • Mar. 31, 2026

TAE creates something like a smoke ring of plasma and aims high-powered neutral particle beams at it to heat and stabilize it, spinning the plasma, like keeping a toy top in motion.

From The Wall Street Journal • Mar. 28, 2026

Several of the chapters, about particle accelerators and fusion reactors, take readers on cursory tours of facilities that have at best a tangential connection to space.

From The Wall Street Journal • Mar. 20, 2026

Just as a guitar string of a given size is not capable of playing every possible note—some waves are “forbidden” from appearing on the string—some particle waves are forbidden from being inside a box.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife