Определение closed universe в Английский Язык Английский Язык словарь
A model of the universe in which there is sufficient matter, and thus gravitational force, to halt the expansion initiated by the big bang
(cosmology) a universe in which there is sufficient matter to halt the expansion that began with the big bang and to cause the universe to collapse again; the visible matter is only 10 percent of the matter required for closure but there may be large amounts of dark matter