Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine
REGENERATOR
1. One who, or that which, regenerates.
2. A device used in connection with hot-air engines, gas-burning furnaces, etc, in which the incoming air or gas is heated by being brought intocontact with masses of iron, brick, etc, which have been previously heated by the outgoing, or escaping, hotair or gas.
Source: Websters Vocabulary