Cataract



a descent of water over a steep surface; a waterfall, especially one of considerable size.
any furious rush or downpour of water; deluge.
Ophthalmology.

an abnormality of the eye, characterized by opacity of the lens.
the opaque area.

Historical Examples

Asshur-bani-pal’s power extended from the range of Niphates to the First cataract.
History of Phoenicia George Rawlinson

You must be in a hurry to do it, too, coming downstairs like a cataract.
The Christian Hall Caine

Slowly and sternly it moved toward the roaring edge of the cataract.
Brave Deeds of Union Soldiers Samuel Scoville

Lady O’Moy was in an emotional maelstrom that swept her towards a cataract.
The Snare Rafael Sabatini

It was very hard work, as we had to run and leap and scramble along the slippery and jagged rocks alongside the cataract.
The Perils and Adventures of Harry Skipwith W.H.G. Kingston

There was only one thing to be done—he must ride the cataract.
The Adventures of Piang the Moro Jungle Boy Florence Partello Stuart

This put them all in a good-natured mood, and the “cataract” went home.
The Knights of the White Shield Edward A. Rand

But this cataract of dried leaves, too, is a study in the rhythms of the dead.
The Book of the Damned Charles Fort

The cataract of Tequendama, although not the largest in the world, yet affords a very beautiful sight.
Celebrated Travels and Travellers Jules Verne

I paused involuntarily a hundred paces from the brink of the cataract.
Ernest Linwood Caroline Lee Hentz

noun
a large waterfall or rapids
a deluge; downpour
(pathol)

partial or total opacity of the crystalline lens of the eye
the opaque area

n.

early 15c., “a waterfall, floodgate,” from Latin cataracta “waterfall,” from Greek katarhaktes “waterfall, broken water; a kind of portcullis,” noun use of an adjective compound meaning “swooping, down-rushing,” from kata “down” (see cata-). The second element is traced either to arhattein “to strike hard” (in which case the compound is kat-arrhattein), or to rhattein “to dash, break.”

Its alternative sense in Latin of “portcullis” probably was passed through French to form the English meaning “eye disease” (early 15c.), on the notion of “obstruction” (to eyesight).

cataract cat·a·ract (kāt’ə-rākt’)
n.
Opacity of the lens or capsule of the eye, causing impairment of vision or blindness.
cat’a·rac’tous (-rāk’təs) adj.
cataract
(kāt’ə-rākt’)

An opacity of the lens of the eye or the membrane that covers it, causing impairment of vision or blindness.

A waterfall in which a large volume of water flows over a steep precipice.

cataract [(kat-uh-rakt)]

A loss in the transparency of the lens of the eye, which reduces a person’s ability to see. The condition can be treated by surgically removing the lens and replacing it with an artificial one, or with corrective eyeglasses or contact lenses.

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  • Cataracted

    a descent of water over a steep surface; a waterfall, especially one of considerable size. any furious rush or downpour of water; deluge. Ophthalmology. an abnormality of the eye, characterized by opacity of the lens. the opaque area. noun a large waterfall or rapids a deluge; downpour (pathol) partial or total opacity of the crystalline […]

  • Cataractogenic

    cataractogenic cataractogenic cat·a·rac·to·gen·ic (kāt’ə-rāk’tə-jěn’ĭk) adj. Relating to or having the ability to produce a cataract.



  • Cataractous

    a descent of water over a steep surface; a waterfall, especially one of considerable size. any furious rush or downpour of water; deluge. Ophthalmology. an abnormality of the eye, characterized by opacity of the lens. the opaque area. Historical Examples No other eye disease and no prevalent constitutional diseases or degeneracies in the cataractous stock. […]

  • Catarrh

    Pathology. inflammation of a mucous membrane, especially of the respiratory tract, accompanied by excessive secretions. Historical Examples The menus for colds, catarrh, hay fever, and asthma may be used for influenza. Encyclopedia of Diet, Vol. 4 (of 5) Eugene Christian One said to the other “By the way how is that catarrh of yours?” Prairie […]



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