cataract
noun
Did you know?
The ocular meaning of cataract that English users are most familiar with is also the oldest. It dates to the 14th century and comes from the Latin word cataracta, meaning “portcullis,” probably because a cataract in one’s eye obstructs vision much like a portcullis’s heavy iron grating obstructs passage into a fortress or castle. Cataracta has another meaning, however—“waterfall”—and that meaning gave English the water-related meanings that came in later centuries. The connection between the two Latin meanings can be seen in katarassein, the Greek source of cataracta. It means “to dash down,” describing the action of both the slamming portcullis and the cascading waterfall.
Examples of cataract in a Sentence
Katherine Ott,
The Conversation,
2 July 2026
Gifford had a hip replacement, broke her arm, and got cataract surgery.
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Christina Perrier,
InStyle,
30 June 2026
In addition to her hip surgery and cataract procedure, Gifford's broken bones led to further complications and physical limitations, including an impact on her ability to play with her five grandchildren.
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Joey Nolfi,
Entertainment Weekly,
30 June 2026
Many had cataracts, which can be treated in 5–10 minutes for $50 to $100.
—
Ashoka,
Forbes.com,
30 June 2026
See All Example Sentences for cataract
Cite this Entry
“Cataract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cataract. Accessed 5 Jul. 2026.
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cataract
noun
Medical Definition
cataract
noun
