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Definitions

particle

[pahr-ti-kuhl] / ˈpɑr tɪ kəl /


Example Sentences

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The Amaterasu particle was reported at about 240 exa-electron volts, giving one tiny cosmic-ray particle roughly the kinetic energy of a fast-moving tennis ball.

From Science Daily • Jun. 9, 2026

Its reported energy ranks it among the most powerful cosmic-ray events ever observed, placing it in the same rare category as the "Oh-My-God particle" recorded in 1991.

From Science Daily • Jun. 9, 2026

The British physicist-turned-computer scientist conceived the web in 1989 while working at CERN, the European particle physics lab in Switzerland.

From Barron's • Jun. 4, 2026

Pluvicto carries a beta particle that travels for a longer range but is less lethal, while the new therapy uses an alpha particle that is more lethal but travels shorter distances, the analyst says.

From The Wall Street Journal • Jun. 2, 2026

Casimir realized that the forbidden particle waves would affect the zero-point energy of the vacuum, since particles are everywhere winking in and out of existence.

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




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