Solvay process

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A process used to produce large quantities of soda ash from sodium chloride, ammonia, and carbon dioxide.

from The Century Dictionary.

• noun See soda, 1.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an industrial process for producing sodium carbonate from sodium chloride and ammonia and carbon dioxide