Enter a clue or pattern or both:
The Clue
Mini-planetariums (8 letter answer)
The Answer
ORRERIES
Tags
Notes
The answer ORRERIES is so rare that it appears less than once every 2500 puzzles.
Definition
ORRERY as a noun:
1. 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