orrery

(ôr′ər ē)

a mechanical apparatus which illustrates with balls of various sizes the relative motions and positions of the earth, moon, sun, etc.

Origin: after Charles Boyle, Earl of Orrery (1676-1731), for whom one was made

See orrery in American Heritage Dictionary 4

noun pl. or·re·ries

A mechanical model of the solar system.

Origin:

Origin: After Charles Boyle, Fourth Earl of Orrery (1676-1731), for whom one was made

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