Undulant
Part of speech: adjective
Definition: Having the characteristics of a wave; wavelike
Motion
Part of speech: verb
Definition: To gesture indicating a desired movement.
Part of speech: noun
Definition: A state of progression from one place to another.A change of position with respect to time.A change from one place to another.A parliamentary action to propose something.
Example sentence: Most people have no concept of how an automatic transmission works, yet they know how to drive a car. You don't have to study physics to understand the laws of motion to drive a car. You don't have to understand any of this stuff to use Macintosh.