cataracts

[kat-uh-rakt] Example Sentences

cat·a·ract

[kat-uh-rakt]
noun
1.
a descent of water over a steep surface; a waterfall, especially one of considerable size.
2.
any furious rush or downpour of water; deluge.
3.
Ophthalmology.
a.
an abnormality of the eye, characterized by opacity of the lens.
b.
the opaque area.

Origin:
1350–1400; Middle English cataracte < Latin catar(r)acta < Greek katarráktēs waterfall, floodgate, portcullis (noun), downrushing (adj.), akin to katarássein to dash down, equivalent to kat- cata- + arássein to smite

cat·a·rac·tal, cat·a·rac·tous, adjective
cat·a·ract·ed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Cataracts is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a fool or simpleton; ninny.
Example Sentences
  • The rays can cause skin cancer and eye cataracts in humans and they harm a variety of plants and animals, scientists say.
  • The company was also sued by people who used the drug and blamed it for causing cataracts.
  • Some cataracts stop progressing after a certain point.
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American Heritage
Science Dictionary
cataract   (kāt'ə-rākt')  Pronunciation Key 
  1. An opacity of the lens of the eye or the membrane that covers it, causing impairment of vision or blindness.

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


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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