Cataract

['kætərækt]

解释:

(noun.) a large waterfall; violent rush of water over a precipice.

(noun.) an eye disease that involves the clouding or opacification of the natural lens of the eye.

塞德里克录入--From WordNet

解释:

(n.) A great fall of water over a precipice; a large waterfall.

(n.) An opacity of the crystalline lens, or of its capsule, which prevents the passage of the rays of light and impairs or destroys the sight.

(n.) A kind of hydraulic brake for regulating the action of pumping engines and other machines; -- sometimes called dashpot.

校对:克劳斯

同义词及近义词：

n. [1]. Waterfall, fall, cascade.[2]. (Med.) Obstructed sight, loss of sight (from opacity of the crystalline lens).

埃米莉录入

解释:

n. a great fall of water water-spout &c.: a waterfall or cascade: an opaque condition of the lens of the eye painless unaccompanied by inflammation occasioning blindness simply by obstructing the passage of the light.

手打:莎伦