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time dilatation

noun
1.
Physics. (in relativity) the apparent loss of time of a moving clock as observed by a stationary observer.
Also, time dilation.
Origin
1955-1960
1955-60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for time dilatation

time dilation

noun
1.
the principle predicted by relativity that time intervals between events in a system have larger values measured by an observer moving with respect to the system than those measured by an observer at rest with respect to it
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
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Word Value for time

6
7
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