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Definitions

long-lived

[lawng-lahyvd, -livd, long-] / ˈlɔŋˈlaɪvd, -ˈlɪvd, ˈlɒŋ- /


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.

If it works, it could provide potentially limitless electricity without greenhouse gases or long-lived radioactive waste.

From The Wall Street Journal • May 1, 2026

These animals were part of the multituberculates, a long-lived group that first appeared during the Jurassic Period and persisted for more than 100 million years before eventually going extinct.

From Science Daily • Apr. 27, 2026

Astronaut Jeremy Hansen said the moment should "challenge this generation and the next, to make sure this record is not long-lived."

From Barron's • Apr. 7, 2026

Unlike fission, nuclear fusion generates “no long-lived radioactive waste,” Bechtel says, and unlike fossil fuels, it doesn’t involve burning finite resources and creating carbon emissions.

From The Wall Street Journal • Apr. 6, 2026

Darwin’s “considerable relief” could not have been long-lived; he would soon be awoken from his “mad dream.”

From "The Gene" by Siddhartha Mukherjee




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