Cataract

Cat"a*ract

(?), n. [L. cataracta, catarracles, a waterfall, Gr. , , fr. to break down; in the passive, to fall or rush down (of tumors) to burst; kata` down + to break.] 1. A great fall of water over a precipice; a large waterfall.
[1913 Webster]

2. (Surg.) An opacity of the crystalline lens, or of its capsule, which prevents the passage of the rays of light and impairs or destroys the sight.
[1913 Webster]

3. (Mach.) A kind of hydraulic brake for regulating the action of pumping engines and other machines; -- sometimes called dashpot.
[1913 Webster]

 

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Sat 15th December 2018