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Armillary sphere
01
a model of the celestial sphere, historically used to depict and study the positions of celestial objects, consisting of a series of hoops representing important circles in the sky
Grammatical Information
Animacy status
Inanimate
Composition
Compound
Countable
Plural form
armillary spheres
Examples
The armillary sphere was used by astronomers in ancient Greece to demonstrate the motions of stars and planets.
