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
- 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 katarrakt&emacron;s, katarakt&emacron;s, 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”).