Up-and-down motion Synonyms

Up-and-down replaced

perpendicular motion

vertical motion

violent motion

UM abbreviation

UM is an abbreviation for Up-and-down Motion

What does UM stand for?

UM stands for "Up-and-down Motion"

Motion replaced

up-and-down movement

Definitions for Motion

(noun) the act or an instance of changing position
(verb) to direct or notify by a movement or gesture
(noun) the act of changing location from one place to another