单词 | cataract |
释义 | cataract[ kat-uh-rakt ] / ˈkæt əˌrækt / SEE SYNONYMS FOR cataract ON THESAURUS.COM nouna descent of water over a steep surface; a waterfall, especially one of considerable size. any furious rush or downpour of water; deluge. Ophthalmology.
Origin of cataract1350–1400; 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 OTHER WORDS FROM cataractcat·a·rac·tal, cat·a·rac·tous, adjectivecat·a·ract·ed, adjectiveWords nearby cataractcataplane, cataplasia, cataplasm, cataplexy, catapult, cataract, cataractogenic, catarrh, catarrhal fever, catarrhal gastritis, catarrhal inflammation Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for cataractBritish Dictionary definitions for cataractcataract / (ˈkætəˌrækt) / nouna large waterfall or rapids a deluge; downpour pathol
Word Origin for cataractC15: from Latin catarracta, from Greek katarrhaktēs, from katarassein to dash down, from arassein to strike Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for cataractcataract [ (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. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for cataractcataract [ kăt′ə-răkt′ ] n.Opacity of the lens or capsule of the eye, causing impairment of vision or blindness. Other words from cataractcat′a•rac′tous (-răk′təs) adj.The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for cataractcataract [ kăt′ə-răkt′ ] 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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