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radioactivity

[ray-dee-oh-ak-tiv-i-tee] / ˌreɪ di oʊ ækˈtɪv ɪ ti /


NOUN
radiation
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.

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But the presence of heavily armed soldiers, security checkpoints, and signs warning of radioactivity are anything but ordinary.

From Barron's ● Jun. 28, 2026

There, Erikson teased out the stealthy, almost sinister peculiarities of modern man-made hazards, like radioactivity and toxicity, and their special, traumatic effects.

From The Wall Street Journal ● Dec. 18, 2025

At-211's short half-life also means it quickly loses its radioactivity, making it less toxic than longer-lived radiopharmaceuticals.

From Science Daily ● Nov. 11, 2025

The camera will then pick up the radioactivity in such a way that doctors can see how, for example, a cancer has spread.

From BBC ● Feb. 26, 2025

No laboratory in the world was as well equipped as theirs to discover artificial radioactivity, for none was as capable of such sustained bombardment.

From "Big Science" by Michael Hiltzik




Vocabulary lists containing radioactivity


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