Some days, she felt as though glaciers were buckling around her and a crevasse yawned beneath her.
With the crawling, for instance, Bradey had been on top of a snow bridge that crossed a crevasse.
At one point he fell down a crevasse and was left dangling in the abyss from a rope, up which he dragged his disintegrating body.
1823, of glaciers; 1814, of riverbanks (in that case from Louisiana French), from French crevasse, from Old French crevace "crevice" (see crevice). Essentially the same word as crevice, but re-adopted in senses for which the meaning that had taken hold in crevice was felt to be too small.