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单词库 \ 英汉词典 \

cataract是什么意思

cataract

英[ˈkætərækt] 美[ˈkætəˌrækt]

n. 大瀑布，急瀑布，[医]白内障，暴雨，洪水，奔流；

复数：cataracts;

相关单词 cataracta Cataracta viridis cataracts glaucomatous cataract

同义词

cataract的同义词之：
river waterfall

反义词

cataract的反义词之：
cascade

柯林斯高阶英汉双解学习词典释义

N-COUNT

白内障

Cataracts are layers over a person's eyes that prevent them from seeing properly. Cataracts usually develop because of old age or illness.
例句
In one study, light smokers were found to be more than twice as likely to get cataracts as non-smokers... 研究表明，即使抽烟不多的人也比不抽烟的人患白内障的概率高出一倍多。 Age is not a factor in cataract surgery. 年龄并不是影响做白内障手术的因素。
N-COUNT

大瀑布

A cataract is a large waterfall.

英汉词典释义

n.
大瀑布
The way is blocked by the tall cataract. 高悬的大瀑布挡住了去路。
<医>白内障
He is an elderly gentleman who had had a cataract operation. 他是一位曾经动过白内障手术的老人。

英英词典释义

Noun
1. clouding of the natural lens of the eye
2. a large waterfall; violent rush of water over a precipice

行业词典

医学：内障，白内障：一眼或双眼，部分或完全的眼睛晶状体或其囊的不透明。特别是引起视力不良的不透明或引起失明。根据其形态(大小、形状、部位)或病因(原因和发生时间)，白内障可分为许多种；
药学：白内障；

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