oscillating universe

noun

, Astronomy.

1. a variant model of the closed universe in which the universe undergoes cycles of expansion and contraction.

oscillating universe

/ ŏs′ə-lā′tĭng /

1. A model of a closed universe in which the expansion of the universe slows and reverses, thereby causing a collapse into a singularity, which then expands into a new universe, repeating the cycle. Such a model implies that our universe is just one of a long line of universes. Scientists have not been able to develop a theory of how a collapsed universe could expand into a new one.