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Definitions

radioactive

[ray-dee-oh-ak-tiv] / ˌreɪ di oʊˈæk tɪv /
ADJECTIVE
active
Synonyms


Example Sentences

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Argon-argon dating is based on the natural radioactive decay of potassium-40 in volcanic rock into argon-40.

From Science Daily ● Sep. 30, 2026

After Bankman-Fried went to prison, the EA brand became radioactive.

From The Wall Street Journal ● Sep. 27, 2026

Prison bosses later faced formal censure proceedings after inmates and staff were exposed to dangerous levels of the naturally occurring radioactive gas.

From BBC ● Sep. 13, 2026

Poisoned by the overwhelmingly toxic culture of time, the film’s downward-punching humor is as radioactive as its future’s fallow fields.

From Salon ● Sep. 6, 2026

If left alone, the groundwater would continue to flow toward the sea, carrying radioactive isotopes from the reactors with it, so workers pumped hundreds of gallons of water from the reactor basements every day.

From "Meltdown" by Deirdre Langeland



Vocabulary lists containing radioactive


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