Economizer
[i'kɒnәmaizә]
Definition
(noun.) a frugal person who limits spending and avoids waste.
Typed by Keller--From WordNet
Definition
(n.) One who, or that which, economizes.
(n.) Specifically: (Steam Boilers) An arrangement of pipes for heating feed water by waste heat in the gases passing to the chimney.
Checked by Ida