Definition of cataract in English:

cataract

Syllabification: cat·a·ract
Pronunciation: /ˈkatəˌrakt
 
/

noun

  • 1A large waterfall.
    More example sentences
    • A cataract is also a waterfall - a glorious force that washes away so much you're glad to be rid of, perhaps with some cleansing tears as a finale.
    • The Old Cataract Hotel in Aswan, built in 1899, stands at the site of the first cataract, or waterfall, of the Nile.
    • After a wet spell, the cataract is more spectacular, but the penalty is the state of the ground.
  • 1.1A sudden rush of water; a downpour: the rain enveloped us in a deafening cataract
    More example sentences
    • The current weather report is for, basically, the sky to collapse, typhoons, cataracts and hurricanes, spouting till they have drench'd our steeples, etc.
  • 2A medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision: she had cataracts in both eyes
    More example sentences
    • The most common causes of visual impairment in the elderly include presbyopia, cataracts, glaucoma, diabetic retinopathy and age-related macular degeneration.
    • Chronic obstructive pulmonary disease included asthma and chronic bronchitis, and eye disease included cataracts and glaucoma.
    • This increased risk of falling may be the result of changes that come with aging plus other medical conditions, such as arthritis, cataracts, or hip surgery.

Origin

late Middle English: from Latin cataracta 'waterfall, floodgate', also 'portcullis' (medical sense 2 probably being a figurative use of this), from Greek kataraktēs 'down-rushing', from katarassein, from kata- 'down' + arassein 'strike, smash'.

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