orrery

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or·re·ry

 (ôr′ə-rē, ŏr′-)
n. pl. or·re·ries
A mechanical model of the solar system or parts of it.

[After Charles Boyle, Fourth Earl of Orrery (1676-1731), for whom one was made.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

orrery

(ˈɒrərɪ)
n, pl -ries
(Astronomy) a mechanical model of the solar system in which the planets can be moved at the correct relative velocities around the sun
[C18: originally made for Charles Boyle, Earl of Orrery]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

or•rer•y

(ˈɔr ə ri, ˈɒr-)

n., pl. -rer•ies.
an apparatus for representing with movable balls the positions, motions, and phases of the bodies of the solar system.
[1705–15; after Charles Boyle, Earl of Orrery (1676–1731), for whom it was first made]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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 wheelworkorrery - 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
planetarium - an apparatus or model for representing the solar systems
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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has made its mark melding the two disciplines of its moniker (art and science) in its fantastic orreries -- clockwork-driven planet and moon systems that actually move in orbit at the proper relative speeds.
The finest examples of Rittenhouse's craftsmanship, however, were two orreries, or mechanical solar systems.
As might be expected from his clock-making talent, the Rittenhouse orreries are exquisite.