What is centrifugal force?

The centrifugal force is an inertial force (also called a "fictitious" or "pseudo" force) directed away from the axis of rotation that appears to act on all objects when viewed in a rotating frame of reference. The concept of the centrifugal force can be applied in rotating devices, such as centrifuges, centrifugal pumps, etc. when they are analyzed in a rotating coordinate system.