orrery : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: orrery	by the DICT Development Group
2 results for orrery
From WordNet (r) 3.0 (2006) [wn]:
orrery n 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
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Orrery \Or"re*ry\, n.; pl. {Orreries}. [So named in honor of the Earl of Orrery.] An apparatus which illustrates, by the revolution of balls moved by wheelwork, the relative size, periodic motions, positions, orbits, etc., of bodies in the solar system.