regenerator

[ ri-jen-uh-rey-ter ]
/ rɪˈdʒɛn əˌreɪ tər /

noun

a person or thing that regenerates.
(in a regenerative furnace) a chamber filled with checkerwork that is repeatedly heated by exhaust gases in order to heat air that is passed through it.

Origin of regenerator

First recorded in 1730–40; regenerate + -or2

Example sentences from the Web for regenerator