Dictionary

orrery

noun or·rery \ˈr-ər-ē, ˈär-\
plural or·rer·ies

Definition of ORRERY

:  an apparatus showing the relative positions and motions of bodies in the solar system by balls moved by a clockwork

Illustration of ORRERY

Origin of ORRERY

Charles Boyle †1731 4th Earl of Orrery
First Known Use: 1713

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