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We found 26 dictionaries with English definitions that include the word hard water: Click on the first link on a line below to go directly to a page where "hard water" is defined. General (14 matching dictionaries) hard water: Vocabulary.com [home, info] hard-water, hard water: Wordnik [home, info] hard water: Wiktionary [home, info] hard water: Infoplease Dictionary [home, info] hard water: Dictionary.com [home, info] hard water: UltraLingua English Dictionary [home, info] Hard Water: Wikipedia, the Free Encyclopedia [home, info] hard water: Rhymezone [home, info] hard water: Stammtisch Beau Fleuve Acronyms [home, info] hard water: Free Dictionary [home, info] hard water: Mnemonic Dictionary [home, info] hard water: WordNet 1.7 Vocabulary Helper [home, info] hard water: LookWAYup Translating Dictionary/Thesaurus [home, info] hard water: Dictionary/thesaurus [home, info] Business (2 matching dictionaries) Hard Water: Construction Term Glossary [home, info] hard water: BusinessDictionary.com [home, info] Computing (1 matching dictionary) hard water: Encyclopedia [home, info] Medicine (2 matching dictionaries) hard water: online medical dictionary [home, info] hard water: Medical dictionary [home, info] Science (1 matching dictionary) Hard Water: Chemistry Dictionary [home, info] Slang (1 matching dictionary) Hard Water: Urban Dictionary [home, info] Tech (5 matching dictionaries) HARD WATER: Lake and Water Word Glossary [home, info] hard water: Schlumberger Oilfield Glossary [home, info] HARD WATER: Pool Glossary [home, info] HARD WATER: Power Engineering [home, info] hard water: Glossary of Water Resource Terms [home, info]

Quick definitions from WordNet (hard water) ▸ noun:  water that contains salts (as calcium and magnesium ions) that limit the formation of lather with soap