heat wave

noun

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
One theory is that a lengthy heat wave last year largely attributed to climate change and blamed for bleaching corals may have changed the algae in ocean waters, especially near the sea floor, where sawfish are often found. Curt Anderson, Sun Sentinel, 5 Mar. 2025 Hurricanes, heat waves, and fires are escalating, yet in 2023 governments spent hundreds of billions of dollars subsidizing oil and gas companies. Brent Crane, The New Yorker, 2 Mar. 2025 Point out that even as democracy hangs in the balance, a planet ravaged by ever-deadlier heat waves, fires and storms isn’t a place any of us want to live. Sammy Roth, Los Angeles Times, 25 Feb. 2025 Among the immediate strains of climate change are increasingly frequent and severe hurricanes, floods, and heat waves, causing prolonged power outages, often leaving entire communities in the dark. Essence, 13 Jan. 2025 See All Example Sentences for heat wave

Word History

First Known Use

1893, in the meaning defined above

Time Traveler
The first known use of heat wave was in 1893

Browse Nearby Words

Cite this Entry

“Heat wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20wave. Accessed 12 Mar. 2025.

Kids Definition

heat wave

noun
: a period of unusually hot weather

More from Merriam-Webster on heat wave

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!