# fourth dimension

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## fourth dimension

n.
Time regarded as a coordinate dimension and required by relativity theory, along with three spatial dimensions, to specify completely the location of any event.

## fourth dimension

n
1. (General Physics) 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. (Literary & Literary Critical Terms) the concept in science fiction of a dimension in addition to three spatial dimensions, used to explain supernatural phenomena, events, etc
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## fourth′ dimen′sion

n.
1. a dimension, usu. time, in addition to length, width, and depth, used to discuss phenomena that depend on four variables in geometrical language.
2. something beyond scientific explanation.
[1870–75]
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 fourth dimension - the fourth coordinate that is required (along with three spatial dimensions) to specify a physical eventtimedimension - the magnitude of something in a particular direction (especially length or width or height)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

## fourth dimension

n the fourth dimension
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
This constraint, which is useful to overcome the nonclosure problem [50], is nonetheless still too strong, since some anisotropic effects on the brane are generically expected as a consequence of the "deformation" induced on the 4-dimensional geometry by 5-dimensional gravity [18].
The same applies to the simulations for 4-dimensional geometry: the numerically obtained value u [approximately equal to] 3.3 [+ or -] 0.1 is slightly more than the expected value of u = 2[pi]/[pi]-1, but less than u = 4, which corresponds to the isotropic four-dimensional geometry.

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