orreries

Variant of orrery

orrery definition

or·rery (ôr′ər ē)

noun pl. orreries -·rer·ies

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

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

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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