Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
time and motion study
time base
time bomb
time capsule
time-challenged
time clock
time-consuming
time deposit
time dilation
time exposure
time frame
time fuse
time-honored
time horizon
time immemorial
time lag
time-lapse photography
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

time dilation

time di·la·tion or time dil·a·ta·tion


noun 
Definition:
 
theory of time relative to motion: the principle that time elapsed is relative to motion, such that time passes more slowly for a system in motion than for one at rest relative to an outside observer. Further, as predicted by Einstein's special theory of relativity, time passes increasingly slowly as the motion relative to the observer approaches the speed of light.

Advertisement

© 2009 Microsoft