space-time

noun

ˈspās-ˈtīm How to pronounce space-time (audio)
ˈspās-ˌtīm
1
: a system of one temporal and three spatial coordinates by which any physical object or event can be located

called also space-time continuum

2
: the whole or a portion of physical reality determinable by a usually four-dimensional coordinate system
also : the properties characteristic of such an order

Examples of space-time in a Sentence

Recent Examples on the Web
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The act of inflation took the quantum foam of space-time and expanded it to larger scales, laying down the gravitational seeds that would someday grow up to be stars, galaxies and the cosmic web. Paul Sutter, Space.com, 19 Jan. 2025 Such hyper-sensitive sensors may also have other applications, such as GPS-free navigation, the detection of underground bunkers, and the discovery of gravitational ripples in space-time from the moments after the Big Bang. IEEE Spectrum, 12 Jan. 2025 Albert Einstein theorized that mass bends the fabric of space-time, and then Arthur Eddington observed the effects of this bending during a solar eclipse. Henry Carnell, Quanta Magazine, 10 Jan. 2025 Einstein’s general relativity, which is a classical theory of gravity, says that gravity is the warping of the fabric of space-time by a massive object. Anil Ananthaswamy, WIRED, 29 Dec. 2024 See all Example Sentences for space-time 

Word History

First Known Use

1910, in the meaning defined at sense 1

Time Traveler
The first known use of space-time was in 1910

Dictionary Entries Near space-time

Cite this Entry

“Space-time.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/space-time. Accessed 23 Jan. 2025.

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