The crossword solution for the term RELATING TO OR CAUSED BY MOTION is KINETIC, which is a seven-letter word. KINETIC is an adjective that describes something that is related to or caused by motion. It is derived from the Greek word 'kinesis, ' which means motion. KINETIC energy is a form of energy that is associated with the motion of an object. KINETIC energy can be converted into other forms of energy, such as electrical energy.