fourth dimension

• Concept en physique et en mathématiques désignant le temps comme quatrième coordonnée de l'espace-temps, en plus des trois dimensions spatiales (longueur, largeur, hauteur).

A concept in physics and mathematics referring to time as the fourth coordinate in spacetime, beyond the three spatial dimensions of length, width, and height.

1. Time as a dimensionC1formal

   In physics, the concept of time as a fourth dimension alongside the three spatial dimensions, forming spacetime.

   quatrième dimension

   • Einstein's theory of relativity treats time as the fourth dimension.
   • In the fourth dimension, events are described by their position in space and time.
   • Understanding the fourth dimension is crucial for modern cosmology.

2. Metaphorical or abstract conceptB2informal

   A figurative reference to something beyond ordinary experience or perception.

   quatrième dimension

   • The artist's work seems to explore a fourth dimension of emotion.
   • Some people describe deep meditation as entering a fourth dimension.
   • The novel's plot twists feel like they come from a fourth dimension of reality.