A cataract is a large waterfall.
- An example of a cataract is Niagara Falls.
- An example of a cataract is an eye problem where the lens in an older person's eye gets cloudy causing vision issues.
- a large waterfall
- any strong flood or rush of water; deluge
- [often pl., with pl. or sing. v.] an eye disease in which the crystalline lens or its capsule becomes opaque, causing partial or total blindness
- the opaque area
Origin of cataractMiddle English cataracte, floodgate (of heaven), cataract (of the eye) from Classical Latin cataracta, a waterfall, portcullis from Classical Greek katarhakt?s from katarhassein, to dash down from kata-, down + rhassein, to strike or uncertain or unknown; perhaps arassein, to smite
- A large or high waterfall.
- A great downpour; a deluge.
- Medicine Opacity of the lens or capsule of the eye, causing impairment of vision or blindness.
Origin of cataractMiddle English cataracte from Old French from Latin cataracta from Greek katarraktēs, kataraktēs downrush, waterfall, portcullis probably from katarassein to dash down ( kat-, kata- cata- ) ( arassein to strike ) Sense 3, from a comparison to a portcullis or other falling impediment or covering
From Latin cataracta 'waterfall, portcullis', from Ancient Greek καταράκτης (kataraktēs), from καταράσσω (katarassō, “I pour down”).