Definition of ptosis
: a sagging or prolapse of an organ or part; especially : a drooping of the upper eyelid
Recent Examples of ptosis from the Web
The researchers did find that aging (duh), number of pregnancies and smoking did cause breast ptosis.
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Origin and Etymology of ptosis
New Latin, from Greek ptōsis act of falling, from piptein
First Known Use: 1710See Words from the same year
Learn More about ptosis
Britannica.com: Encyclopedia article about ptosis
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