heat wave


Definition of heat wave

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web California’s electric grid operator has issued a statewide Flex Alert for Wednesday from 4 to 9 p.m., calling for people to conserve energy during an expected heat wave. Omar Shaikh Rashad, San Francisco Chronicle, 8 Sep. 2021 The county is still reeling from a staggering number of deaths caused by an unprecedented heat wave in June. oregonlive, 20 Aug. 2021 This year has already seen hundreds of deaths related to an historic heat wave in the US West. Jen Christensen, CNN, 19 Aug. 2021 An unprecedented, record-breaking heat wave in the Pacific Northwest in June left more than 100 people dead. Jennifer Calfas, WSJ, 13 Aug. 2021 The wildfires, too, have become intense following years of drought and an unseasonable heat wave. Claire Bugos, Smithsonian Magazine, 10 Aug. 2021 Greece is battling an intense heat wave that's sparking wildfires across the country and forcing key attractions like the Acropolis to close for several hours a day this week. Meena Thiruvengadam, Travel + Leisure, 4 Aug. 2021 The Pacific Northwest is once again battling an oppressive heat wave as temperatures soared close to 100 degrees in parts of Oregon and Washington state this week, the latest freak weather upending the lives of millions of Americans. Washington Post, 31 July 2021 An aggressive heat wave earlier this month set offat least 78fires in the West Coast, burning more than a million acres. Todd Nelson, Star Tribune, 24 July 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heat wave.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of heat wave

1893, in the meaning defined above

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Time Traveler for heat wave

Time Traveler

The first known use of heat wave was in 1893

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Dictionary Entries Near heat wave

heat up

heat wave


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Statistics for heat wave

Last Updated

11 Sep 2021

Cite this Entry

“Heat wave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20wave. Accessed 16 Sep. 2021.

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More Definitions for heat wave

heat wave


English Language Learners Definition of heat wave

: a period of unusually hot weather

More from Merriam-Webster on heat wave

Thesaurus: All synonyms and antonyms for heat wave

Britannica English: Translation of heat wave for Arabic Speakers

Britannica.com: Encyclopedia article about heat wave


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