ɔːˈriː

Definitions

1. noun

A mechanical device that demonstrates the relative motions of the planets and other celestial bodies in our solar system, typically by means of a series of balls or objects attached to a rotating axis.

“The orrery in the museum was an impressive model of the solar system, with each planet accurately depicted in its orbit.”

2. noun

An astronomical clock with a mechanical model of the solar system.

“The orrery on the church tower was a beautiful example of 18th-century astronomical technology.”