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Definitions

radioactive

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


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.

Instead, the deal allowed Iran’s scientists and technicians to continue gaining experience with nuclear technology and the handling of materials that aren’t only radioactive but also highly toxic and corrosive.

From The Wall Street Journal • Apr. 27, 2026

He was the first to have shape-shifting powers, which he gained after encountering a mysterious radioactive pool of protoplasm.

From Los Angeles Times • Apr. 22, 2026

Under the latest agreement, the government said the company must now halt all activities that produce radioactive waste within five years of its renewed operating licence.

From Barron's • Apr. 22, 2026

Drawing on his training, he took some fabric, wet it and put it across the apartment entrance as a precaution to catch radioactive dust, he adds.

From BBC • Apr. 18, 2026

The government has yet to find a place to permanently store the soil it has scraped from the towns of Fukushima and until they do, the radioactive waste will continue to be a hazard.

From "Meltdown" by Deirdre Langeland



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