[noun soo-per-heet; verb soo-per-heet]
- the state of being superheated.
- the amount of superheating.
- 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.
Origin of superheat
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for superheat
- 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
- 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.