heat dome

noun

plural heat domes
: a large weather pattern characterized by high atmospheric pressure that collects and holds an unusual amount of heat over a particular area

Examples of heat dome 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.
The recent heat dome, a high-pressure weather system that traps heat and humidity over a region, affected some specialty farmers who produce crops of fruits and vegetables. — ABC News, 8 July 2026 The expanding heat dome may also help usher some moisture into parts of the Rockies next week as winds shift out of the south. — Mary Gilbert, CNN Money, 8 July 2026 The heat will be driven by the arrival of a strong area of high pressure, known as a heat dome. — Doyle Rice, USA Today, 6 July 2026 In Europe, unseasonable highs near 40°C (104°F) have hung on since mid-June under a stubborn heat dome. — Hanna Wickes, Kansas City Star, 6 July 2026 See All Example Sentences for heat dome

Word History

First Known Use

1985, in the meaning defined above

Time Traveler
The first known use of heat dome was in 1985

Rhymes for heat dome

See All Rhymes for heat dome

Browse Nearby Words

heat devil
heat dome
heated
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Cite this Entry

“Heat dome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20dome. Accessed 14 Jul. 2026.

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