motionrule
nounUK /ˈməʊʃən ruːl/
US /ˈmoʊʃən ruːl/
A motionrule is a rule about how things move.
The teacher explained the motionrule that says a ball rolls faster down a steep hill.
OTHER MEANINGS
2. A guideline in a game that tells players how to move.
The board game's motionrule says you can only move two spaces per turn.
3. A setting in a machine or robot that controls how it moves.
The robot's motionrule keeps it from bumping into walls.
4. A rule in a dance or sport about the way the body moves.
The dance motionrule says everyone must step to the left on the beat.