from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A model of the universe in which there is sufficient matter, and thus gravitational force, to halt the expansion initiated by the big bang.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (cosmology) a universe that is spatially closed and in which there is sufficient matter to halt the expansion that began with the big bang; the visible matter is only 10 percent of the matter required for closure but there may be large amounts of dark matter
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