Dictionary

space–time

noun \ˈspās-ˈtīm, ˈspās-ˌ\

Definition of SPACE-TIME

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

First Known Use of SPACE-TIME

1915

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