Quick definitions from WordNet (cascade)
▸ noun: a succession of stages or operations or processes or units ("Progressing in severity as though a cascade of genetic damage was occurring")
▸ noun: a small waterfall or series of small waterfalls
▸ noun: a sudden downpour (as of tears or sparks etc) likened to a rain shower ("A sudden cascade of sparks")
▸ verb: rush down in big quantities, like a cascade
▸ verb: arrange (open windows) on a computer desktop so that they overlap each other, with the title bars visible
▸ Also see cascade
▸ noun: a succession of stages or operations or processes or units ("Progressing in severity as though a cascade of genetic damage was occurring")
▸ noun: a small waterfall or series of small waterfalls
▸ noun: a sudden downpour (as of tears or sparks etc) likened to a rain shower ("A sudden cascade of sparks")
▸ verb: rush down in big quantities, like a cascade
▸ verb: arrange (open windows) on a computer desktop so that they overlap each other, with the title bars visible
▸ Also see cascade