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more about cataract
cataract |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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. 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. 3. (Mach.) A kind of hydraulic brake for regulating the action of pumping engines and other machines; -- sometimes called {dashpot}. From WordNet r 1.6 [wn]: cataract n 1: clouding of the natural lens of the eye 2: a steep descent of the water of a river [syn: {waterfall}, {falls}, {cascade}]
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