preheater

noun

pre·​heater
"+
: any of various devices for preliminary heating: such as
a
: a heat exchanger used in brewing and distilling
b
: any of various devices for using waste heat for preliminary heating in petroleum refining processes

Word History

Etymology

preheat + -er

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Cite this Entry

“Preheater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/preheater. Accessed 23 Dec. 2025.

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