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Từ điển WordNet v3.1 - WordNet Dictionary
planetarium
1. a building housing an instrument for projecting the positions of the planets onto a domed ceiling • Hypernyms: building, edifice 2. an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome • Hypernyms: optical device 3. an apparatus or model for representing the solar systems • Hypernyms: model, simulation • Hyponyms: orrery
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