heat wave


Definition of heat wave 

: a period of unusually hot weather

Examples of heat wave in a Sentence

Recent Examples on the Web

Increasing bouts of extreme heat waves and drought will hurt production of barley, a key beer ingredient, in the future. Seth Borenstein, The Seattle Times, "Global warming to leave us crying in our costlier beer," 17 Oct. 2018 The heat wave is creating a rare set of conditions perfect for aerial surveys, but a preliminary analysis by meteorologists at World Weather Attribution (WWA) says climate change makes events like this more likely. Kiona N. Smith, Ars Technica, "Climate change brings Britain and Ireland’s hidden past to the surface," 1 Aug. 2018 The worst of the heat wave is expected to be over this week. Fox News, "Record high in Japan as heat wave grips the region," 23 July 2018 While the end of summer seems light-years away in this heat wave, unfortunately it’s right around the corner. Michaela Bechler, Vogue, "5 New Netflix Movies We’re Excited About This Fall," 10 Aug. 2018 The Latest on hot weather and wildfires in Europe (all times local): 10:50 a.m. France's environment minister has called on motorists to comply with car restrictions amid a heat wave expected to peak Tuesday in the country. Fox News, "The Latest: More car limits in France as heat wave peaks," 7 Aug. 2018 Amid a heat wave that peaked Friday and continued to set records in many places over the weekend, several fires broke out. latimes.com, "Today: A Mile-Long Dive Through Peril," 9 July 2018 By British standards, Wimbledon opened Monday amid a heat wave. Liz Clarke, chicagotribune.com, "Wimbledon women's draw figured to be wide open — and that was before Sloane Stephens lost in the first round," 2 July 2018 Stay cool: 100-degree heat anticipated across the U.S. Record-high temperatures are expected to scorch the Northeast over the weekend, as a blazing heat wave makes its way across the nation. Editors, USA TODAY, "Families Belong Together rallies, World Cup, elections in Mexico: 5 things to know this weekend," 30 June 2018

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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Dictionary Entries near heat wave


heat unit

heat up

heat wave




Statistics for heat wave

Last Updated

2 Dec 2018

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Time Traveler for heat wave

The first known use of heat wave was in 1893

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More Definitions for heat wave

heat wave


English Language Learners Definition of heat wave

: a period of unusually hot weather

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More from Merriam-Webster on heat wave

Rhyming Dictionary: Words that rhyme with heat wave

Spanish Central: Translation of heat wave

Britannica English: Translation of heat wave for Arabic Speakers

Britannica.com: Encyclopedia article about heat wave

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the figure or shape of a crescent moon

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