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Showing results for radioactive. Search instead for radio-active.
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 highly radioactive material is held at several secure sites across the country, including at LANL.

From Barron's • May 26, 2026

The director-general of the IAEA, Rafael Grossi, has warned repeatedly about the risk of a radioactive incident at such plants.

From Salon • May 21, 2026

“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

Steam that passes through the torus is scrubbed of most of its radioactive isotopes before it leaves the building, a vast improvement over allowing the steam to enter the environment without any intervention.

From "Meltdown" by Deirdre Langeland



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