Dictionary

time dilation

noun

Definition of TIME DILATION

:  a slowing of time in accordance with the theory of relativity that occurs in a system in motion relative to an outside observer and that becomes apparent especially as the speed of the system approaches that of light —called also time dilatation
ADVERTISEMENT

First Known Use of TIME DILATION

1934

Browse

Next Word in the Dictionary: time draftPrevious Word in the Dictionary: timed fireAll Words Near: time dilation
ADVERTISEMENT
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears