Definitions for: Planetarium


[n] an apparatus or model for representing the solar systems
[n] an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome
[n] a building housing an instrument for projecting the positions of the planets onto a domed ceiling



Webster (1913) Definition: Plan`e*ta"ri*um, n. [NL.: cf. F. plan['e]taire.
See Planetary.]
An orrery. See Orrery.

See Also: building, edifice, model, optical device, orrery, planetarium, simulation

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