geodesic motion

geodesic motion

[¦jē·ə¦des·ik ′mō·shən]
(relativity)
Motion of a particle along a geodesic path in the four dimensional space-time continuum; according to general relativity, this is the motion which occurs in the absence of nongravitational forces.
References in periodicals archive ?
Poplawski takes advantage of the Euclidean-based coordinate system called isotropic coordinates to describe the gravitational field of a black hole and model the radial geodesic motion of a massive particle into a black hole.