superheated

superheat

[n. soo-per-heet; v. soo-per-heet]
noun
1.
the state of being superheated.
2.
the amount of superheating.
verb (used with object)
3.
to heat to an extreme degree or to a very high temperature.
4.
to heat (a liquid) above its boiling point without the formation of bubbles of vapor.
5.
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.

Origin:
1855–60; super- + heat

superheater, noun
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World English Dictionary
superheat (ˌsuːpəˈhiːt)
 
vb
1.  to heat (a vapour, esp steam) to a temperature above its saturation point for a given pressure
2.  to heat (a liquid) to a temperature above its boiling point without boiling occurring
3.  to heat excessively; overheat
 
super'heater
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
superheat   (s'pər-hēt')  Pronunciation Key 
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
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