from the GNU version of the Collaborative International Dictionary of English.

  • heated to a temperature above the boiling point at the ambient pressure; -- said of liquids. In such an unstable condition, a small disturbance of the liquid can cause a rapid and sometimes violent ebullition of vapor.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb Simple past tense and past participle of superheat.
  • adjective heated above the boiling point;
  • adjective figuratively exceedingly intense or emotional.


Sorry, no etymologies found.


  • Yes, it is true that a vessel of water heated in a microwave can be superheated, that is, the temperature of the water can be above its spontaneous boiling point.

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  • The steam is then referred to as superheated steam.

    Citizendium, the Citizens' Compendium - Recent changes [en]

  • The hot, compressed vapor is then in the thermodynamic state known as a superheated vapor and it is at temperature and pressure at which it can be condensed with typically available cooling water or cooling air.

    Citizendium, the Citizens' Compendium - Recent changes [en]

  • Even my ship, which has been tested up to about thirty-five gigapascals with conductors running as hot as they can, would become some kind of superheated condensate at that kind of pressure.

    Asimov's Science Fiction

  • If these "superheated" molecules are jarred or disturbed, they will change from water to vapor in an instant, releasing a huge burst of steam, or even a small explosion.

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  • Since the turbine works even with relatively cool fluid, the invention could be particularly useful for situations where the geothermal source does not provide enough heat to produce the "superheated" steam needed to drive a conventional steam engine. - latest science and technology news stories

  • He said police were operating in a "superheated" political environment in which they feared the consequences of abandoning the probe.

    The Independent - Frontpage RSS Feed

  • On occasion it can become superheated, meaning the water gets hotter than the normal boiling point without actually boiling, and then explodes when you disturb it: posted by M on 2006-06-15 06: 47: 26

    Apartment Therapy Main

  • (or cylinders, if there are more than one), keeping it extra hot -- "superheated"; and thereafter it is made to perform a like duty to the boiler-feed water, before it is allowed to escape.

    Stories of Inventors The Adventures of Inventors and Engineers

  • A growth figure of three percent or less would be grist for the dollar bears "mill, while any hint of the" superheated "seven percent of the last quarter of

    ANC Daily News Briefing


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