(kor, ē ō’ lis) 1. A velocity-dependent acceleration in a reference frame that is moving with respect to an inertial reference frame. Specifically, the acceleration of a body in motion with respect to the Earth resulting from the rotation of the Earth, as seen by an observer on the Earth. The Coriolis acceleration on a body moving on the surface of the Earth with a velocity V is where =angular rotation of the Earth and is the latitude. A Coriolis acceleration of a moving gravimeter is involved in the Eötvös effect (q.v.). Named for Gustave Gaspard Coriolis (1792-1843), French mathematician.