Vichy water

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

• noun A naturally effervescent mineral water from the springs at Vichy.
• noun A sparkling mineral water resembling this effervescent beverage.

from the GNU version of the Collaborative International Dictionary of English.

• proper noun A mineral water found at Vichy, France. It is essentially an effervescent aqueous solution of sodium, calcium, and magnesium carbonates, with sodium and potassium chlorides; also, by extension, any artificial or natural water resembling in composition the Vichy water proper. Called also, colloquially, Vichy.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A naturally effervescent mineral water from springs at Vichy in France.
• noun Any sparkling mineral water resembling it.

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

• noun sparkling mineral water from springs at Vichy, France or water similar to it