1. four-dimensional - Adjective
2. four-dimensional - Adjective Satellite
involving or relating to the fourth dimension or time
Source: WordNetThe quest of the absolute leads into the four-dimensional world. Arthur Eddington
If a shadow is a two-dimensional projection of the three-dimensional world, then the three-dimensional world as we know it is the projection of the four-dimensional Universe. Marcel Duchamp
Light signals alone provide the metrical structure of the four-dimensional space-time continuum. The construction may be called light axioms. Hans Reichenbach
True time is four-dimensional. Martin Heidegger
I regret that it has been necessary for me in this lecture to administer a large dose of four-dimensional geometry. I do not apologize, because I am really not responsible for the fact that nature in its most fundamental aspect is four-dimensional. Things are what they are. Alfred North Whitehead
As a result, we get a surface (two-dimensional) in four-dimensional space. Source: Internet