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4-dimensional

4-dimensional

1 8.9
A space that has four dimensions, including time as the fourth
  • adjective
  • /fɔr dɪˈmɛnʃənl/
  • Specialized
translation icon : cuatridimensional
  • Scientists study 4-dimensional spacetime to explore the fundamental nature of the universe.

Examples

  • In physics, a 4-dimensional model helps us understand how objects move through both space and time.

  • So we have a timeless 4-dimensional space that’s uncreated according to Hawking’s theory.

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  • A CTC is the closed path of any object as it travels through 4-dimensional spacetime; if the path brings the object back to its starting point, the path is said to be closed.

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  • He said the universe goes back to a timeless 4-dimensional space that's uncreated.

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  • For fast particles, no matter how much kinetic energy you give them, the ratio of distance to time (i.e., speed) can never exceed 'c', which is the 4-dimensional equivalent of 45 degrees.

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  • This would mean that the middle layer is quite full, so when constructing a 5-dimensional array out of the 4-dimensional configurations, like (a b c) (d e f) (g h i), one should indeed be able to get a better upper bound.

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  • The concept of a 4-dimensional shape includes time as an additional dimension beyond length, width, and height.

Synonyms

four-dimensional
vs4-dimensional
  • Specialized
2 8.1

Having four dimensions, usually three in space and one in time

is identical in meaning but written with a numeral and hyphen

How Many Dimensions

hyperdimensional
  • Specialized
1 9.9
4-dimensional
  • Specialized
1 8.9
two-dimensional
  • Specialized
7 3.5
one-dimensional
  • Specialized
2 4.7

Surface Forms

4-dimensional positive

Morphology

4-dimensional = dimensional (transparent) = 4 + dimension + al

The numeral '4' transparently modifies the adjective 'dimensional' to indicate having four dimensions.

Etymology

4-Dimensional comes from the number four and dimension, where dimension means a 'direction' or 'measure', like in the familiar '3D' or 'three-dimensional' things. So a 4-dimensional object has 'four directions' to move or measure — usually the three directions of space plus time, which is why people call space and time together 4-dimensional.