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planetarium

DEFINITIONS OF: planetarium

1

n an apparatus or model for representing the solar systems

Types:
orrery
planetarium consisting of an apparatus that illustrates the relative positions and motions of bodies in the solar system by rotation and revolution of balls moved by wheelwork; sometimes incorporated in a clock
Type of:
model, simulation
representation of something (sometimes on a smaller scale)

n an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome

Type of:
optical device
a device for producing or controlling light

n a building housing an instrument for projecting the positions of the planets onto a domed ceiling

Type of:
building, edifice
a structure that has a roof and walls and stands more or less permanently in one place
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