- the temperature of a red-hot body.
- the condition of being red-hot.
Origin of red heat
First recorded in 1680–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for red heat
FeP is obtained by passing phosphorus vapour over Fe2P at a red-heat.
If the bar is not up to red-heat, the feat is dangerous, as the chemicals will not act.
At a red-heat it evolves oxygen, and is reduced first to nitrite; if the heat is continued, potassic oxide remains.Poisons: Their Effects and Detection
Alexander Wynter Blyth
- the temperature at which a substance is red-hot
- the state or condition of being red-hot
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