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nuclear radiation

American  
[noo-klee-er rey-dee-ey-shuhn, nyoo-] / ˈnu kli ər ˌreɪ diˈeɪ ʃən, ˈnyu- /

noun

  1. Physics. radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission.


Pronunciation

See nuclear ( def. ).

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.

Or the spin U.S. authorities tried to put on the dangers of nuclear radiation, post-Hiroshima.

From The Wall Street Journal • Dec. 31, 2025

She wrote about these harms in a vivid and terrifying illustration using another global fear at the time: nuclear radiation.

From Slate • Sep. 29, 2024

—Dawn Chapman for years has advocated for the cleanup of nuclear radiation around St. Louis.

From Seattle Times • Mar. 7, 2024

He even challenged the scientific consensus that nuclear radiation was bad for wildlife, insisting that flora and fauna from fish and birds to coconut trees and guava bushes were flourishing in the Bikini atoll.

From Salon • Jun. 20, 2022

Each set would contain instruments to measure nuclear radiation, any disturbances in the earth's magnetic field, and the passage of a body that was giving off heat.

From The Report on Unidentified Flying Objects by Ruppelt, Edward J.