Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun planetarium

3 senses of planetarium

Sense 1
planetarium -- (a building housing an instrument for projecting the positions of the planets onto a domed ceiling)
       => building, edifice -- (a structure that has a roof and walls and stands more or less permanently in one place; "there was a three-story building on the corner"; "it was an imposing edifice")

Sense 2
planetarium -- (an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome)
       => optical device -- (a device for producing or controlling light)

Sense 3
planetarium -- (an apparatus or model for representing the solar systems)
       => model, simulation -- (representation of something (sometimes on a smaller scale))