| 1. |
(noun) an apparatus or model for representing the solar systems |
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Related Words: model, orrery, simulation |
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| 2. |
(noun) an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome |
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Related Words: optical device |
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| 3. |
(noun) a building housing an instrument for projecting the positions of the planets onto a domed ceiling |
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Related Words: building, edifice |
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