cataract

cataract
cataract (n.) early 15c., from L. cataracta "waterfall," from Gk. katarhaktes "waterfall, broken water; swooping, rushing down; portcullis," noun use of adjective from kata "down" (see CATA- (Cf. cata-)) + arhattein "to strike hard." 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."

Etymology dictionary. 2014.

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Synonyms:
, , / , (from opacity of the crystalline lens)


Look at other dictionaries:

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  • cataract — [kat′ə rakt΄] n. [ME cataracte, floodgate (of heaven), cataract (of the eye) < L cataracta, a waterfall, portcullis < Gr katarhaktēs < katarhassein, to dash down < kata , down + rhassein, to strike or ? arassein, to smite] 1. a large… …   English World dictionary

  • 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… …   The Collaborative International Dictionary of English

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  • cataract — n *flood, deluge, inundation, torrent, spate …   New Dictionary of Synonyms

  • cataract — ► NOUN 1) a large waterfall. 2) a medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision. ORIGIN Latin cataracta waterfall, floodgate , also portcullis (sense 2 probably being a figurative use of… …   English terms dictionary

  • Cataract — For other uses, see Cataract (disambiguation). Cataract Classification and external resources Magnified view of cataract in human eye, seen on examination with a slit lamp using diffuse illumination …   Wikipedia

  • Cataract — A clouding of the lens of the eye. The normally clear aspirin sized lens of the eye starts to become cloudy. The result is much like smearing grease over the lens of a camera. It impairs normal vision. There are many causes of cataracts including …   Medical dictionary

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