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reference frame

noun, Physics.
Origin of reference frame
First recorded in 1920-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for reference frame
Historical Examples
  • At the proper instant I shifted again, to the reference frame of this Galaxy itself.

    Upstarts L. J. Stecher
reference frame in Science
reference frame
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.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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