Definition of "seltzer" []

• A natural effervescent spring water of high mineral content. (noun)
• See carbonated water. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I make my own ginger syrup, often with honey as the base instead of sugar, and use it as you described, in seltzer water for homemade ginger ale (esp since none of the standard brands even have real ginger in them anymore)."
• "For example, she says, you can tempt them to drink more water and fewer soft drinks by using fun water bottles, or buying naturally flavored seltzer water or plain seltzer water and adding a shot of cranberry juice or orange juice."
• "If you can push a button, then your custom-made seltzer is ready to serve."