su·​per·​heat | \ ˌsü-pər-ˈhēt How to pronounce superheat (audio) \
superheated; superheating; superheats

Definition of superheat

 (Entry 1 of 2)

transitive verb

1 : to heat (a vapor not in contact with its own liquid) so as to cause to remain free from suspended liquid droplets superheated steam
2 : to heat (a liquid) above the boiling point without converting into vapor


su·​per·​heat | \ ˈsü-pər-ˌhēt How to pronounce superheat (audio) , ˌsü-pər-ˈhēt \

Definition of superheat (Entry 2 of 2)

: the extra heat imparted to a vapor in superheating it from a dry and saturated condition also : the corresponding rise of temperature

Other Words from superheat


superheater noun

Examples of superheat in a Sentence

Recent Examples on the Web: Verb And/or solarize to superheat the soil and kill both the grass and weed seeds. Nan Sterman, San Diego Union-Tribune, 7 Aug. 2021 Its magma reservoirs sit very close to the surface, feeding heat and gas into a shallow aquifer above it, superheating any water trapped in the rock, and pressurizing the surrounding sediment. Megan Molteni, Wired, 10 Dec. 2019 Normally, that boundary huddles too close to the star for astronomers to see it, but this particular star had a sudden burst of brightness that superheated its disk, obliterating ice further out than usual. Sarah Lewin Frasier, Scientific American, 13 July 2016 Solar panels generate electrical power, which the vehicle then uses to generate microwaves, which superheat the water up to Sun-surface temperatures. Sarah Scoles, WIRED, 22 Aug. 2019 Ben Platt didn’t stumble tenderfooted into the title character of Dear Evan Hansen, the musical in which his superheated, sung-through-sobs performance earned him a Tony, an Emmy, and a Grammy before his 25th birthday. Vogue, 20 Aug. 2019 The plastic will trap the sun’s rays to superheat the soil, killing grass, weeds, weed seeds, etc. Nan Sterman, San Diego Union-Tribune, 3 July 2019 When superheated cast iron meets shreds of potato skin embedded in the dough, the slight charring ignites one final flourish of barbecue brisket essence. Ali Bouzari, San Francisco Chronicle, 12 Apr. 2018 Make sure to put a chopstick or toothpick inside the bowl—if not, the water can superheat and make the bowl explode! Alyse Whitney, Bon Appetit, 18 Jan. 2018 Recent Examples on the Web: Noun Today Saudi Arabian engineers plan to build a plant with giant mirrors that concentrate sunlight and superheat water within a steel-and-glass dome more than 50 meters across. Prachi Patel, Scientific American, 26 Jan. 2021 Maars appear when magma mixes explosively with groundwater, triggering eruptions of fresh volcanic material, or when hot rock superheats this water, creating bursts of steam that fling rock into the sky. Robin George Andrews, National Geographic, 12 Sep. 2019 Turn the water off, then wait six to eight weeks as the soil superheats to kill the grass and weeds. Nan Sterman,, 3 Aug. 2017 See More

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

First Known Use of superheat


1849, in the meaning defined at sense 1


1852, in the meaning defined above

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The first known use of superheat was in 1849

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Cite this Entry

“Superheat.” Dictionary, Merriam-Webster, Accessed 23 May. 2022.

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