inertial observer
- a hypothetical observer who is not accelerated with respect to an inertial system. Newton's laws of motion and the special theory of relativity apply to the measurements which would be made by such observers
Show More
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012