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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.

Amundsen’s work is in keeping with the rest of the show, which fills two halls at the liberal arts school with visual and multimedia works that probe the persistence of radioactive materials.

From Los Angeles Times • Mar. 27, 2026

The U.S. military has elite teams specially trained to remove radioactive material from a conflict zone.

From The Wall Street Journal • Mar. 15, 2026

Herrera was certainly the less radioactive candidate of the two.

From Slate • Mar. 9, 2026

In the end, Fennell took home the statue for best original screenplay, cementing her prowess in Oscar gold — and turning herself radioactive forevermore.

From Salon • Feb. 23, 2026

Sailors on the Reagan later reported that they had been caught in a radioactive cloud.

From "Meltdown" by Deirdre Langeland