Orrery definition

ôrə-rē, ŏr-
Frequency:
A mechanical model of the solar system or parts of it.
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A mechanical apparatus consisting of balls of various sizes arranged as on wires, designed to illustrate the relative motions and positions of the sun, earth, moon, and often other planets.
noun
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A clockwork model of any given solar system.
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Other Word Forms

Noun

Singular:
orrery
Plural:
orreries

Origin of orrery

  • After Charles Boyle, Fourth Earl of Orrery (1676–1731), for whom one was made

    From American Heritage Dictionary of the English Language, 5th Edition

  • Named after Charles Boyle, 4th Earl of Orrery (1676-1731), for whom such a device was made.

    From Wiktionary