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noun. ['ˌplænəˈtɛriːəm'] an apparatus or model for representing the solar systems.
Rhymes with Planetarium
Sentences with planetarium
1. Noun, singular or mass
Perhaps a dream job for many stargazers is to be staff member at a planetarium.
noun. ['ˌplænəˈtɛriːəm'] an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome.
noun. ['ˌplænəˈtɛriːəm'] a building housing an instrument for projecting the positions of the planets onto a domed ceiling.