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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.

“The dangers are so much different. Instead of an explosion, it just turns off. There’s no radioactive waste. So this light touch is exactly what the Congress overwhelmingly … wanted the NRC to do.”

From MarketWatch • May 18, 2026

According to the team, the results strongly point to the Local Interstellar Cloud as the source of the radioactive material.

From Science Daily • May 14, 2026

If it works, it could provide potentially limitless electricity without greenhouse gases or long-lived radioactive waste.

From The Wall Street Journal • May 1, 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

Your life will be declared a radioactive zone for hundreds of years if you can’t release some pressure by showing the truth of what you know to anyone who’ll listen.

From "Challenger Deep" by Neal Shusterman



Vocabulary lists containing radioactive


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