Definition of "superheat" []

• To heat excessively; overheat. (verb-transitive)
• To heat (steam or other vapor not in contact with its own liquid) beyond its saturation point at a given pressure. (verb-transitive)
• To heat (a liquid) above its boiling point without causing vaporization. (verb-transitive)
• The amount by which a vapor is superheated. (noun)
• The heat imparted during the process of superheating. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The steam will still be superheated but maybe 580 PSIG at 575F superheat which is about 1288-13. 2."
• "Over 1,000 mirrors, each "about half the size of a tennis court", will be used to reflect sunlight to "superheat" water at a central tower."
• "The result: Water can "superheat," without boiling."