Seltzer Selter • seltzogene · · · Info · Definitions · Synonyms · Characters · · Seltzer · · Text Latin · · Script 7 · · Length Definitions · · · (noun) naturally effervescent mineral water. Synonyms: seltzer. · · Noun Definition 1 (noun) effervescent beverage artificially charged with carbon dioxide. Synonyms: soda water, carbonated water, club soda, seltzer, sparkling water. · · Noun Definition 2 Synonyms · · · soda water · · Synonym 1 carbonated water · · Synonym 2 club soda · · Synonym 3 sparkling water · · Synonym 4 Characters · · S latin capital letter s U+0053 e latin small letter e U+0065 l latin small letter l U+006C r latin small letter r U+0072 t latin small letter t U+0074 z latin small letter z U+007A