| 单词 | fourth dimension | 
| 释义 | fourth dimensionsingular noun In physics, the fourth dimension is time. The other three dimensions, which exist in space, are length, width, and height.[technical] fourth dimension in British Englishnoun 1.  the dimension of time, which is necessary in addition to three spatial dimensions to specify fully the position and behaviour of a point or particle 2.  the concept in science fiction of a dimension in addition to three spatial dimensions, used to explain supernatural phenomena, events, etc Derived formsfourth-dimensional (ˌfourth-diˈmensional)  adjective fourth dimension in American English a dimension in addition to the ordinary three space coordinates of length, width, and depth: in the theory of relativity, time is regarded as the fourth dimensionsee also   space-time (sense 1) Derived formsfourth-dimensional (ˈfourth-diˈmensional)  adjective Examples of 'fourth dimension' in a sentence | 
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