An Etymological Dictionary of Astronomy and Astrophysics

The state of extremely high density and temperature into which a closed → Universe would → collapse in the distant future. If the Universe has a mass density exceeding the critical threshold, then gravity will eventually halt the expansion and cause the Big Crunch.

Etymology (EN): → big; crunch “to crush, grind, or tread noisily; the act or sound of crunching,” alteration of craunch, possibly of imitative origin.

Etymology (PE): Meh “large, big,” → big; romb, → collapse, from rombidan “to collapse;” rombeš-e farjâmin “final collapase,” from rombeš verbal noun of rombidan; farjâmin, → late.