also: the temperature at which a substance is red-hot
Examples of red heat in a Sentence
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The country’s health ministry has issued red heat alerts for 16 cities.—Laura Paddison, CNN Money, 12 Aug. 2025 In Paris, the Eiffel Tower was closed on July 1 and July 2, because the city is under a red heat wave warning, which is the highest designation.—Staff Author, Travel + Leisure, 2 July 2025 Portuguese authorities issued a red heat warning Monday for seven of 18 districts as temperatures were forecast to hit 43 degrees Celsius (more than 109F).—Suzan Fraser, Chicago Tribune, 30 June 2025 Having that little bit of red heat really is a nice thing for the palate.—Bon Appétit, 20 Nov. 2024 Now suddenly the embers are showing a little red heat again.—Heather Landy, Quartz, 2 Oct. 2022 Sixteen out of 18 districts in Portugal are under top-tier red heat alerts; the two remaining are under a yellow or orange alert.—Karla Adam, Washington Post, 13 July 2022 The drawings are arranged under red heat lamps — the kind that are used to hatch chicken eggs — and the environment is not unlike a stomach, the artist pointed out.—Meredith Mendelsohn, New York Times, 10 Apr. 2018
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