background radiation
noun
: the microwave radiation pervading the universe that exhibits a corresponding blackbody temperature of 2.7 K and that is the principal evidence supporting the big bang theory
called also cosmic background radiation
Examples of background radiation in a Sentence
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By comparison, a person on Earth receives an average of 2 mSv every year from just background radiation, NASA said.
—
Mary Kekatos, ABC News, 5 Sep. 2024
We're constantly exposed to background radiation just by living on Earth.
—Rhett Allain, WIRED, 23 Feb. 2024
These actions not only harmed the soldiers themselves but also caused a significant surge in background radiation levels within the vicinity.
—Monique Brouillette, Popular Mechanics, 28 Aug. 2023
In research published in 2018, scientists studied the cells of bank voles that inhabit the Chernobyl nuclear power plant, where background radiation levels are 100 times greater than in uncontaminated areas.
—Monique Brouillette, Popular Mechanics, 6 July 2023
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Mary Kekatos, ABC News, 5 Sep. 2024
We're constantly exposed to background radiation just by living on Earth.
—Rhett Allain, WIRED, 23 Feb. 2024
These actions not only harmed the soldiers themselves but also caused a significant surge in background radiation levels within the vicinity.
—Monique Brouillette, Popular Mechanics, 28 Aug. 2023
In research published in 2018, scientists studied the cells of bank voles that inhabit the Chernobyl nuclear power plant, where background radiation levels are 100 times greater than in uncontaminated areas.
—Monique Brouillette, Popular Mechanics, 6 July 2023
See all Example Sentences for background radiation
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Cite this Entry
“Background radiation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/background%20radiation. Accessed 24 Nov. 2024.
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