Cataractous

cat·a·ract  (kt-rkt)

n.

1. A large or high waterfall.

2. A great downpour; a deluge.

3. Pathology Opacity of the lens or capsule of the eye, causing impairment of vision or blindness.

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[Middle English cataracte, from Old French, from Latin cataracta, from Greek katarrakts, katarakts, 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.]

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cata·ractous (-rkts) adj.