Meaning of regenerator

re•gen•er•a•tor

Pronunciation: (ri-jen'u-rā"tur), [key]
— n.
  1. a person or thing that regenerates.
  2. (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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.