Cataract

A cataract is a large waterfall or place where the flow of a river changes dramatically. The term comes from the Greek word kataraktes, whose meaning "to dash down" or "downrush" describes rapidly running water, and the Latin cataracta, whose meaning describes "a waterfall", "a floodgate", or "a portcullis". As rapidly running water turns white, the term was later used metaphorically to describe the similar appearance of mature ocular opacities.

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Cataract is also the name of a metal/hardcore band, .

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Waterfall: :For other senses of this word, see waterfall (disambiguation)....

River: :For the Second World War frigate class, see River class frigate. For the state of Nigeria, see Rivers State....

Greek: The noun Greek refers to:...