cataract

noun

The sailors were terrified when they saw a cataract forming in the distance.

意味（1）

(obsolete) A waterspout.

意味（2）

A large waterfall; steep rapids in a river.

The cataracts on the Nile helped to compartment Upper Egypt.

意味（3）

A flood of water.

意味（4）

(figuratively) An overwhelming downpour or rush.

His cataract of eloquence

意味（5）

(pathology) A clouding of the lens in the eye leading to a decrease in vision.

Rarely, a dense, swollen neglected cataract precipitates an angle-closure glaucoma.