Spacetime
Definition, Meaning & Examples
Pronunciation /ˈspeɪsˌtaɪm/ · Part of speech noun
Quick meaning: Spacetime is a noun meaning (uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.
Meaning
(uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.
More Meanings
- (relativity) A specific region of the universe with mathematically different properties than the surrounding spacetime. Synonymous with "metric" within the context of general relativity.
- (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.
Example Sentences
a Minkowski spacetime
a 5-dimensional spacetime
a Schwarzschild spacetime
a Reissner-Nordström spacetime
Word Forms
- spacetimes
- space-time
Related Words
Related dictionary entries include supersymmetry, space-time, time, space, four-momentum, four-velocity.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.