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Related to closed Universe: open universe
closed UniverseSee Universe.
closed universe[¦klōzd ′yü·nə‚vərs]
A cosmological model in which the volume of the universe is finite and in which the expansion of the universe will slow to a halt billions of years in the future, and the universe will then contract, becoming progressively denser, until it ends in a fireball similar to the big bang.