or time dilation
Physics. (in relativity) the apparent loss of time of a moving clock as observed by a stationary observer.
spare timeRead more in this article about some frequently asked questions and fun facts related to our definitions.
Sometime, Sometimes, and Some TimeWhile they appear very similar, sometime, sometimes, and some time have slightly different meanings. Sometime means a vague point in time, and usually refers to a long amount of time. Sometimes means occasionally. Some time refers to a period of time. Sometime Sometime refers to an unspecified point in time. It functions as an adverb, and is also synonymous with someday, one day, or sooner …
- time clock,
- time code,
- time constant,
- time copy,
- time deposit,
- time dilation,
- time discount,
- time draft,
- time exposure,
- time flies
Origin of time dilatation
First recorded in 1955–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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
The relativistic effect of the slowing of a clock with respect to an observer. In Special Relativity, a clock moving with respect to an observer appears to run more slowly than to an observer moving with the clock. In General Relativity, time dilation is also caused by gravity; clocks on the earth's surface, for example, run more slowly than clocks at high altitudes, where gravitational forces are weaker.
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