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reference frame

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noun Physics.
  1. frame of reference(def 2).

Origin of reference frame

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
reference frame in Science

reference frame

[rĕfər-əns]
  1. A basis of a four-dimensional coordinate system in which the first coordinate is understood as a time coordinate, while the other three coordinates represent spatial dimensions. Inertial frames and non-inertial frames are both examples of reference frames. Also called frame of reference See also General Relativity space-time Special Relativity.
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