## four-dimensional

four-di·men·sion·al of or in four dimensions, esp. in relativity theory where four coordinates are used to record the space location and time of occurrence of each event

## four-dimensional

adjective

Specified by or exhibiting four dimensions, such as the three spatial dimensions and single temporal dimension of relativity theory.

## four-dimensional

Adjective

(*not comparable*)

- (algebraic geometry) Having four dimensions; being measurable along four mutually perpendicular axes.
- (physics) Relating to the four dimensions of space-time (three spatial dimensions with the addition of time as the fourth)
*We live in a four-dimensional universe.*