four-dimensional(redirected from 4D)
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Specified by or exhibiting four dimensions, such as the three spatial dimensions and single temporal dimension of relativity theory.
(General Physics) having or specified by four dimensions, esp the three spatial dimensions and the dimension of time: a four-dimensional continuum.
1. of our having four dimensions.
2. of a space having points, or a set having elements, that require four coordinates for their unique determination.