An apparent force used mathematically to describe motion, as of air, relative to a non inertial uniformly moving frame of reference.( 0301)
Earth's rotation from east to west exerts a dragging force on the atmosphere. This "coriolis"force is greater near the poles, where earth's surface spins faster, than at the equator, where the surface moves comparatively slowly.
The deflection of moving objects (air and water currents) due to the rotation of the Earth--to the right in the northern hemisphere, and to the left in the southern.