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regenerator

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

Definition of regenerator

  1. 1 :  one that regenerates

  2. 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




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to expose to danger or risk

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