Dictionary.com
Thesaurus.com

vichy water

American  
[vish-ee] / ˈvɪʃ i /
Or Vichy water

noun

  1. a natural mineral water from springs at Vichy, containing sodium bicarbonate, other alkaline salts, etc., used in the treatment of digestive disturbances, gout, etc.

  2. a water of similar composition, either natural or artificial.

vichy water British  

noun

  1. (sometimes capital) a natural mineral water from springs at Vichy in France, reputed to be beneficial to the health

  2. any sparkling mineral water resembling this

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of vichy water

First recorded in 1855–60

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.