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Definitions

nucleus

[noo-klee-uhs, nyoo-] / ˈnu kli əs, ˈnyu- /


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.

The roughly 40% of the Las Vegas Strip that MGM owns is “an entertainment nucleus that simply cannot be replicated anywhere in the world.”

From The Wall Street Journal • Jun. 1, 2026

"The investigations are linked to the nucleus of power which has governed for the past eight years."

From BBC • May 30, 2026

Normally, the protein works inside a cell's nucleus, switching genes on to drive cell growth and metabolism.

From Science Daily • May 17, 2026

A 2025 Nature Communications study from researchers including Christman used spatial transcriptomics and single nucleus RNA sequencing to examine how injectable extracellular matrix biomaterials affect heart tissue after myocardial infarction.

From Science Daily • May 5, 2026

At the center of each of those atoms lies the nucleus, a mash-up of even smaller particles called protons and neutrons.

From "Meltdown" by Deirdre Langeland




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