water softener definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- a chemical compound added to hard water to soften it, as by precipitating out the minerals
- a tank or other container in which water is filtered through any of various chemicals or ion exchange media for softening
water softener definition by American Heritage Dictionary
- A substance used to reduce the hardness of water.
- A device that monitors and reduces the hardness of the water.