Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a toxic, white powder or crystalline material, Ba(OH), used in making lubricating oils and greases, soaps, and insecticides and in sugar refining, water softening, etc.
Used by arrangement with John Wiley & Sons, Inc.
barium hydroxide - Medical Definition
nounThe American Heritage® Medical Dictionary Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A water soluble base used as a chemical reagent.