spacetime

Noun

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Noun

**spacetime**

- (
*uncountable, physics*) The four-dimensional continuum of the three spatial dimensions plus time.*An event is a point in*x**spacetime**, specified by the coordinates*,*y*,*ztand *.*

- (
*physics*) An*n*-dimensional continuum consisting of dimensions of both space and time. Normally spacetime is considered as having 4 dimensions (*x*,*y*,*z*,*t*), but higher-dimensional spacetimes are often encountered in theoretical physics, e.g. the 5-dimensional spacetime of Kaluza-Klein theory or the 11 dimensions of spacetime in M-theory. - (
*relativity*) A specific region of the universe with mathematically different properties than the surrounding spacetime. Synonymous with "metric" within the context of general relativity.- "a Schwarzschild spacetime," "a Reissner-Nordström spacetime," etc. as opposed to sense (2) describing the universe's spacetime as a whole: "a Minkowski spacetime," "a 5-dimensional spacetime," etc.

- French: espace-temps
- German: Raumzeit
- Italian: spaziotempo
- Portuguese: espaço-tempo
- Russian: простра́нство-вре́мя
- Spanish: espacio-tiempo

This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.004