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Pronunciation: (spās'tīm'), [key]
1. Also called space'-time' contin"uum. the four-dimensional continuum, having three spatial coordinates and one temporal coordinate, in which all physical quantities may be located.
2. the physical reality that exists within this four-dimensional continuum.

1. of, pertaining to, or noting a system with three spatial coordinates and one temporal coordinate.
2. noting, pertaining to, or involving both space and time: a space-time problem.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Space Telescopespace travel
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