[ noun soo-per-heet; verb soo-per-heet ]
/ noun ˈsu pərˌhit; verb ˌsu pərˈhit /
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the state of being superheated.
the amount of superheating.
verb (used with object)
to heat to an extreme degree or to a very high temperature.
to heat (a liquid) above its boiling point without the formation of bubbles of vapor.
to heat (a gas, as steam not in contact with water) to such a degree that its temperature may be lowered or its pressure increased without the conversion of any of the gas into liquid.
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The rainy weather could not ________ my elated spirits on my graduation day.
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Origin of superheat

First recorded in 1855–60; super- + heat


su·per·heat·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use superheat in a sentence

  • This more particularly applies to the electrical water, superheat and vacuum readings.

    Steam Turbines|Hubert E. Collins
  • It was 11AM in Florida and she was into her second glass of lemonade as the sun began to superheat the air.

    Makers|Cory Doctorow

British Dictionary definitions for superheat

/ (ˌsuːpəˈhiːt) /

verb (tr)
to heat (a vapour, esp steam) to a temperature above its saturation point for a given pressure
to heat (a liquid) to a temperature above its boiling point without boiling occurring
to heat excessively; overheat

Derived forms of superheat

superheater, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for superheat

[ sōō′pər-hēt ]

To heat a substance above a phase-transition temperature without the transition occurring. For example, water can be heated above its boiling point without boiling; the introduction of an impurity or physical disturbance can then trigger boiling. Superheating is an example of hysteresis. Compare supercool.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.