From HomoExcelsior

1. A waterfall or a series of small waterfalls over steep rocks. 2. Something, such as lace, thought to resemble a waterfall or series of small waterfalls, especially an arrangement or fall of material. 3. A succession of stages, processes, operations, or units. 4. A series of components or networks, the output of each of which serves as the input for the next. 5. To fall or cause to fall in or as if in a cascade.

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