Definitions

[Airicist]

Wheel (https://en.wikipedia.org/wiki/Wheel) on Wikipedia

Mecanum wheel (https://en.wikipedia.org/wiki/Mecanum_wheel) on Wikipedia

Omni wheel (https://en.wikipedia.org/wiki/Omni_wheel) on Wikipedia

Wheeled robots (https://en.wikipedia.org/wiki/Robot_locomotion#Wheeled) on Wikipedia