Webster's English Dictionary

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cascade

1. cas.cade \ka-'ska-d\ n [F, fr. It cascata, fr. cascare to fall, fr. 
   (assumed) VL casica]re, fr. L casus pp. of cadere to fall 1: a steep usu. 
   small fall of water; esp : one of a series  2a: something arranged in a 
   series  2b: a fall of material (as lace) that hangs in a zigzag line  3: 
   something falling or rushing forth in quantity 
2. cascade vi : to fall in a cascade  1: to cause to fall like a cascade  
   2: to connect in a cascade arrangement