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We found 34 dictionaries with English definitions that include the word planetarium: Click on the first link on a line below to go directly to a page where "planetarium" is defined. General (31 matching dictionaries) planetarium: American Heritage Dictionary of the English Language [home, info] planetarium: Collins English Dictionary [home, info] planetarium: Vocabulary.com [home, info] planetarium: Macmillan Dictionary [home, info] planetarium: Merriam-Webster's Online Dictionary, 11th Edition [home, info] Planetarium, planetarium: Wordnik [home, info] planetarium: Cambridge Advanced Learner's Dictionary [home, info] Planetarium: Wiktionary [home, info] planetarium: Compact Oxford English Dictionary [home, info] planetarium: Webster's New World College Dictionary, 4th Ed. [home, info] planetarium: The Wordsmyth English Dictionary-Thesaurus [home, info] planetarium: Infoplease Dictionary [home, info] Planetarium, planetarium: Dictionary.com [home, info] planetarium: Online Etymology Dictionary [home, info] planetarium: UltraLingua English Dictionary [home, info] planetarium: Cambridge Dictionary of American English [home, info] PLANETARIUM (single), Planetarium (Belgium), Planetarium (Bump of Chicken song), Planetarium (Burma), Planetarium (Myanmar), Planetarium (UTA station), Planetarium (disambiguation), Planetarium (song), Planetarium: Wikipedia, the Free Encyclopedia [home, info] Planetarium: Online Plain Text English Dictionary [home, info] planetarium: Webster's Revised Unabridged, 1913 Edition [home, info] planetarium: Rhymezone [home, info] Planetarium: AllWords.com Multi-Lingual Dictionary [home, info] planetarium: Webster's 1828 Dictionary [home, info] planetarium: Hutchinson's Dictionary of Difficult Words [home, info] planetarium: Free Dictionary [home, info] planetarium: Hutchinson Dictionaries [home, info] planetarium: Mnemonic Dictionary [home, info] planetarium: WordNet 1.7 Vocabulary Helper [home, info] planetarium: LookWAYup Translating Dictionary/Thesaurus [home, info] planetarium: Dictionary/thesaurus [home, info] Art (1 matching dictionary) planetarium: ODLIS: Online Dictionary of Library and Information Science [home, info] Computing (1 matching dictionary) planetarium: Encyclopedia [home, info] Science (1 matching dictionary) PLANETARIUM: Zoom Astronomy Glossary [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (planetarium) ▸ noun:  an apparatus or model for representing the solar systems ▸ noun:  an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome ▸ noun:  a building housing an instrument for projecting the positions of the planets onto a domed ceiling ▸ Word origin