an apparent deflective force acting on a moving object, as an airplane, that is being observed from a rotating system, as the surface of the earth: it is proportional to the speed of the object and is in a direction perpendicular to its direction of motion
Origin of Coriolis forceafter G. G. de Coriolis (1792-1843), French mathematician
A pseudo force used mathematically to describe motion, as of aircraft or cloud formations, relative to a noninertial, uniformly rotating frame of reference such as the earth.
Origin of Coriolis forceAfter Gaspard G. de Coriolis, (1792–1843), French mathematician.
(plural Coriolis forces)
- (physics, meteorology) A fictitious force apparently exerted on any moving body (including a parcel of air) due to the rotation of the earth, observed as a deflection of the body to the right of its direction of travel (i.e., clockwise) in the Northern Hemisphere, or to the left (anticlockwise) in the Southern Hemisphere; any equivalent apparent force that deflects objects in a rotating reference frame.
- Coriolis frequency
- Coriolis parameter