say it: KAT-ur-akt
cataract is a noun meaning "an eye disease that involves the clouding or opacification of the natural lens of the eye". It carries 2 recorded senses.
an eye disease that involves the clouding or opacification of the natural lens of the eye
a large waterfall; violent rush of water over a precipice
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for cataract come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.