Astron.
a variant model of the closed universe in which the universe undergoes cycles of expansion and contraction. Cf. closed universe, open universe .
Astron.
a variant model of the closed universe in which the universe undergoes cycles of expansion and contraction. Cf. closed universe, open universe .
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012