Dictionary

regenerator

noun re·gen·er·a·tor \ri-ˈje-nə-ˌrā-tər\

Definition of REGENERATOR

1
:  one that regenerates
2
:  a device used especially with hot-air engines or gas furnaces in which incoming air or gas is heated by contact with masses (as of brick) previously heated by outgoing hot air or gas

First Known Use of REGENERATOR

circa 1550

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