Word of the day: orrery
In short: orrery (noun): 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.
Pronounced /ˈɒ.ɹə.ɹi/.
Definitions from Open English WordNet (CC BY 4.0), which is derived from Princeton WordNet 3.0.
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Sources
- Source: Open English WordNet: orrery · CC BY 4.0
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