fourth dimension

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fourth dimension

1. 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. the concept in science fiction of a dimension in addition to three spatial dimensions, used to explain supranatural phenomena, events, etc.

fourth dimension

[¦fȯrth də′men·chən]
(relativity)
Time in the theory of relativity, in which space and time are conceived as particular aspects of a four-dimensional world.
References in periodicals archive ?
Secondly, it seems impossible for this Euclidean 4-space to 'hook up', so to speak, with the real temporal history of the universe.
LifeVision is Exceptional Innovation's digital TV server with up to four analog (NTSC) or digital (OTA ATSC) tuners and 1-gigabit network capability in a 4-space rack mounted unit.
A special inversion mirror type of relationship is proposed to operate between the dual 4-spaces so that monopoles in the one 4-space create image dipoles in the companion 4-space.
Counting the total number of solids in a 4-space, the incident pairs (p,[alpha]) where p is a point of [KAPPA], and [alpha] solid, and the number of ordered triples (p, r, [alpha]) where p and r are distinct points of [KAPPA], lying in the solid [alpha] respectively, yields the following equations
3] be the unit 3-sphere imbedded in the Euclidean 4-space [E.