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Showing results for radioactive.
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 nonrenewable gas is produced by radioactive decay deep under the earth and escapes into space once released.

From The Wall Street Journal • Mar. 31, 2026

But then, he predicted that industries would start using uranium and radium, and pretty soon we’d have … radioactive smog.

From Los Angeles Times • Mar. 26, 2026

The nuclear start-up announced that it had secured its first license from the Nuclear Regulatory Commission, a federal agency that oversees the civilian use of radioactive materials.

From Barron's • Mar. 17, 2026

Herrera was certainly the less radioactive candidate of the two.

From Slate • Mar. 9, 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