Clouding of Eye That Reduces Vision

This page is the CodyCross answer for the clue below from Fauna and Flora, Group 168, Puzzle 3 (Terrestrial Animals).

Question is: Clouding of Eye That Reduces Vision

and the answer is: CATARACT

Word Meaning:

CATARACT — A (large) waterfall, specifically one flowing over the edge of a cliff.

Definitions from Wiktionary.