reference frame

Definitions of reference frame
  1. noun
    a system that uses coordinates to establish position
    synonyms: coordinate system, frame of reference, reference system
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    Cartesian coordinate system
    a coordinate system for which the coordinates of a point are its distances from a set perpendicular lines that intersect at the origin of the system
    inertial frame, inertial reference frame
    a coordinate system in which Newton's first law of motion is valid
    space-time, space-time continuum
    the four-dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are located
    type of:
    arrangement, organisation, organization, system
    an organized structure for arranging or classifying
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