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We found 52 dictionaries with English definitions that include the word selenium: Click on the first link on a line below to go directly to a page where "selenium" is defined. General (28 matching dictionaries) selenium: American Heritage Dictionary of the English Language [home, info] selenium: Collins English Dictionary [home, info] selenium: Vocabulary.com [home, info] selenium: Macmillan Dictionary [home, info] selenium: Merriam-Webster's Online Dictionary, 11th Edition [home, info] Selenium, selenium: Wordnik [home, info] selenium: Cambridge Advanced Learner's Dictionary [home, info] Selenium: Wiktionary [home, info] selenium: Webster's New World College Dictionary, 4th Ed. [home, info] selenium: The Wordsmyth English Dictionary-Thesaurus [home, info] selenium: Infoplease Dictionary [home, info] selenium: Dictionary.com [home, info] selenium: UltraLingua English Dictionary [home, info] Selenium (Software), Selenium (disambiguation), Selenium: Wikipedia, the Free Encyclopedia [home, info] Selenium: Online Plain Text English Dictionary [home, info] selenium: Webster's Revised Unabridged, 1913 Edition [home, info] selenium: Rhymezone [home, info] Selenium: AllWords.com Multi-Lingual Dictionary [home, info] selenium: Webster's 1828 Dictionary [home, info] Selenium: Encarta® Online Encyclopedia, North American Edition [home, info] Selenium: 1911 edition of the Encyclopedia Britannica [home, info] selenium: Free Dictionary [home, info] selenium: Mnemonic Dictionary [home, info] selenium: WordNet 1.7 Vocabulary Helper [home, info] selenium: LookWAYup Translating Dictionary/Thesaurus [home, info] selenium: Dictionary/thesaurus [home, info] Art (1 matching dictionary) Selenium: Health & Beauty Glossary [home, info] Business (1 matching dictionary) selenium: Financial dictionary [home, info] Computing (1 matching dictionary) selenium: Encyclopedia [home, info] Medicine (11 matching dictionaries) Selenium: MedTerms.com Medical Dictionary [home, info] Selenium: Medical Dictionary [home, info] selenium: Breast Cancer Talking Dictionary [home, info] Selenium: Merck Manuals [home, info] selenium: online medical dictionary [home, info] Selenium: Hepatitis C Information Central [home, info] Selenium: Glossary of Herbs, Botanicals and Other Products [home, info] selenium: Dictionary of Cancer Terms [home, info] selenium: Medical dictionary [home, info] Selenium: Drug Medical Dictionary [home, info] selenium: Hyperdictionary [home, info] Science (3 matching dictionaries) SELENIUM: The Mineral Gallery [home, info] Selenium: Extragalactic Astronomy [home, info] selenium: WebElements Periodic Table of the Elements [home, info] Sports (1 matching dictionary) Selenium: Body Building [home, info] Tech (6 matching dictionaries) selenium: Webster's New World Telecom Dictionary [home, info] Selenium: Ceramic Glossary Database [home, info] Selenium: Beauty Glossary [home, info] SELENIUM: Farrier & Hoofcare [home, info] Selenium: Beauty & Health Glossary [home, info] selenium: Illustrated Glass Dictionary [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (selenium) ▸ noun:  a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable gray metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)