from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The principle that only the motion of objects relative to one another can be measured, and that there is no absolute frame of reference.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (physics) a universal law that states that the laws of mechanics are not affected by a uniform rectilinear motion of the system of coordinates to which they are referred
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