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- (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.
- 2006, J. Gordon Leishman, Principles of Helicopter Aerodynamics, page 197:
- On a rotor, Coriolis forces will appear whenever there is a radial lengthening or shortening of the blade about the rotational axis, which will be a result of blade flapping or bending.
- 2013, C. H. Townes, A.L. Schawlow, Microwave Spectroscopy, page 30,
- These terms are generally thought of as due to Coriolis forces, and represent a coupling of the modes of vibration ω2 and ω3 Coriolis forces in the rotating molecule. The Coriolis force is a fictitious force which must be introduced if mechanical motion is studied in a rotating coordinate system and the rotation is otherwise overlooked.
- 2013, Jack Williams, The AMS Weather Book: The Ultimate Guide to America's Weather, page 56:
- First, we'll look at a simplified picture of how the pressure gradient and Coriolis forces affect an air parcel high above the ground.
- (apparent force due to the rotation of the earth): Coriolis effect