cataracts
n. plural-onlyn. cloudy areas in the lens of the eye that make it hard to see clearly. They are a common cause of poor vision in older people.
n. cloudy areas that develop in the lens of the eye, causing a decrease in vision. Often associated with aging or prolonged exposure to ultraviolet light.
She had surgery to remove the cataracts from her eyes.
After years of working outdoors without sunglasses, he developed cataracts that eventually required a medical procedure to restore his vision.
While cataracts are typically a natural consequence of the aging process, they can also be induced by trauma, certain medications, or systemic health conditions like diabetes.
PIE word *ḱóm From Late Middle English cataractes, cataractis, cateractes, used to translate καταρράκται (katarrháktai, “(probably) floodgates, sluices”) in the Septuagint and cataractae (“floodgates, sluices”) in the Vulgate versions of the Bible. The Middle English words are plural forms of cataract, cataracta, cateract, cateracte (“floodgate of heaven”), from Old French cataracte (modern French cataracte), and from its etymon Latin cataracta (“floodgate; waterfall”), from Ancient Greek καταρ(ρ)άκτης (katar(rh)áktēs, “(noun) waterfall; (adjective) rushing downwards”), from καταρ(ρ)ᾱ́σσω (katar(rh)ā́ssō, “to pour down; to rush downwards”) + -της (-tēs, suffix forming nouns denoting a state of being). Καταρ(ρ)ᾱ́σσω (Katar(rh)ā́ssō) is derived either: from κᾰτᾰ- (kătă-, prefix meaning ‘downwards’) + ἀρᾰ́σσω (arắssō, “to dash to pieces; to strike”) (further etymology unknown, possibly onomatopoeic) or ῥᾱ́σσω (rhā́ssō, “to dash; to strike”) (possibly ultimately from Proto-Indo-European wreh₂ǵʰ- (“to pound, strike”)); or * from καταρρηγνύναι (katarrhēgnúnai, “to break down”). By surface analysis, cataract + -s (suffix forming pluralia tantum).
From cataract + -s (suffix forming regular plural forms of nouns, and third-person singular simple present indicative forms of verbs).