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We found 31 dictionaries with English definitions that include the word tourmaline: Click on the first link on a line below to go directly to a page where "tourmaline" is defined. General (26 matching dictionaries) tourmaline: American Heritage Dictionary of the English Language [home, info] tourmaline: Collins English Dictionary [home, info] tourmaline: Vocabulary.com [home, info] tourmaline: Merriam-Webster's Online Dictionary, 11th Edition [home, info] Tourmaline, tourmaline: Wordnik [home, info] tourmaline: Wiktionary [home, info] tourmaline: Compact Oxford English Dictionary [home, info] tourmaline: Webster's New World College Dictionary, 4th Ed. [home, info] tourmaline (turmaline): The Wordsmyth English Dictionary-Thesaurus [home, info] tourmaline: Infoplease Dictionary [home, info] tourmaline: Dictionary.com [home, info] tourmaline: UltraLingua English Dictionary [home, info] Tourmaline (band), Tourmaline: Wikipedia, the Free Encyclopedia [home, info] Tourmaline: Online Plain Text English Dictionary [home, info] tourmaline: Webster's Revised Unabridged, 1913 Edition [home, info] tourmaline: Rhymezone [home, info] Tourmaline: AllWords.com Multi-Lingual Dictionary [home, info] tourmaline: Hutchinson's Dictionary of Difficult Words [home, info] Tourmaline: 1911 edition of the Encyclopedia Britannica [home, info] tourmaline: Free Dictionary [home, info] tourmaline: Hutchinson Dictionaries [home, info] tourmaline: Luciferous Logolepsy [home, info] tourmaline: Mnemonic Dictionary [home, info] tourmaline: WordNet 1.7 Vocabulary Helper [home, info] tourmaline: LookWAYup Translating Dictionary/Thesaurus [home, info] tourmaline: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) tourmaline: Encyclopedia [home, info] Medicine (2 matching dictionaries) tourmaline: online medical dictionary [home, info] tourmaline: Medical dictionary [home, info] Science (2 matching dictionaries) Tourmaline: Eric Weisstein's World of Chemistry [home, info] TOURMALINE: The Mineral Gallery [home, info]

Quick definitions from WordNet (tourmaline) ▸ noun:  a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones