CATARACT

cataract

(noun) a large waterfall; violent rush of water over a precipice

cataract

(noun) an eye disease that involves the clouding or opacification of the natural lens of the eye

Source: WordNet® 3.1

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Etymology

Noun

cataract (plural cataracts)

(obsolete) A waterspout

A large waterfall; steep rapids in a river.

A flood of water

An overwhelming downpour or rush

(pathology) a clouding of the lens in the eye leading to a decrease in vision.

Source: Wiktionary

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Cat"a*ract, n. Etym: [L. cataracta, catarracles, a waterfall, Gr.

1. A great fall of water over a precipice; a large waterfall.

2. (Surg.)

Definition: 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.)

Definition: A kind of hydraulic brake for regulating the action of pumping engines and other machines; -- sometimes called dashpot.

Source: Webster’s Unabridged Dictionary 1913 Edition

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