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Definitions

radiation

[rey-dee-ey-shuhn] / ˌreɪ diˈeɪ ʃən /




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.

In the 1960s Stephen Hawking demonstrated the Big Bang in theory, while Arno Penzias and Robert Wilson had detected the background radiation that proved decisive evidence of the event.

From The Wall Street Journal • Apr. 16, 2026

"Astronauts' immune systems could be affected from the radiation, which can lead to viruses, such as glandular fever, when they come back," Mackaill says.

From BBC • Apr. 14, 2026

"Our prediction is that we'll see a lot more galactic cosmic radiation... which is from supernovas and is everywhere," versus radiation coming from the Sun, he said.

From Barron's • Apr. 10, 2026

Because they have relatively few stars and less background radiation, they provide a cleaner setting to search for dark matter signals.

From Science Daily • Apr. 10, 2026

Operators at the Fukushima Daiichi plant didn’t have time to think about the radiation drifting over the Pacific.

From "Meltdown" by Deirdre Langeland




Vocabulary lists containing radiation