inertial reference frame(redirected from inertial system)
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Related to inertial system: inertial reference frame, inertial navigation system, Newtonian reference frame
inertial reference frame[i′nər·shəl ′ref·rəns ‚frām]
A coordinate system in which a body moves with constant velocity as long as no force is acting on it. Also known as inertial coordinate system.