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Definitions

radioactivity

[rey-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.

It also has bet on aneutronic fuels, which are seen as cleaner but require higher temperatures, while competitors have relied on neutronic fuels associated with more radioactivity but lower temperatures.

From MarketWatch • May 18, 2026

That process releases huge amounts of energy, no carbon emissions and limited radioactivity.

From The Wall Street Journal • Dec. 18, 2025

The global nuclear watchdog has so far said the levels of radioactivity outside two sites which were attacked and damaged on Friday are unchanged.

From BBC • Jun. 18, 2025

Cabrera Services also said it’s “unlikely” the radioactivity is from large deposits of alum mud.

From Los Angeles Times • Dec. 2, 2024

“I always felt sorry we didn’t find artificial radioactivity for Ernest,” Henderson lamented years later.

From "Big Science" by Michael Hiltzik




Vocabulary lists containing radioactivity


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