Definition, Meaning & Synonyms

fourth-dimension

Noun
/fɔrθ dɪˈmɛnʃən/
Definition
The fourth dimension is a theoretical extension of the three-dimensional spatial world that incorporates time as a fourth coordinate.
Examples
  • In Einstein’s theory of relativity, time is viewed as the fourth dimension that links to the three spatial dimensions.
  • Artists and scientists alike have explored the concept of the fourth dimension in various fields, from visual arts to advanced physics.
  • Understanding the fourth dimension can help in grasping complex theories about the universe’s structure.
Meaning
In physics and mathematics, the fourth dimension is often considered as time, but in certain contexts, it can refer to additional spatial dimensions beyond the typical three we perceive, used in theories concerning the nature of the universe.
Synonyms
  • Time (in relativistic contexts)
  • Extra-dimensional space (in theoretical discussions)
  • Hyperdimension