minkowski space-time

World English Dictionary
Minkowski space-time (mɪŋˈkɒfskɪ)
 
n
a four-dimensional space in which three coordinates specify the position of a point in space and the fourth represents the time at which an event occurred at that point
 
[C20: named after Hermann Minkowski (1864--1909), Russian-born German mathematician]

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American Heritage
Science Dictionary
Minkowski space-time   (mĭn-kôk'skē)  Pronunciation Key 
A four-dimensional space-time with no curvature, assumed in the theory of Special Relativity. The curved space-time of General Relativity appears to be a Minkowski space-time at any given point near an observer, much as the Earth appears basically flat in the vicinity of someone standing on a plain. Minkowski space-time is named for Russian-born German mathematician Hermann Minkowski (1864-1909).
The American Heritage® Science Dictionary
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