What is the meaning of Ptosis?

(n.) Drooping of the upper eyelid, produced by paralysis of its levator muscle.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). ptosis. Retrieved September 25, 2026, from http://smartdefine.org/ptosis/definitions/2050649
ChicagoWebster's. 2011. "ptosis" http://smartdefine.org/ptosis/definitions/2050649 (accessed September 25, 2026).
HarvardWebster's 2011, ptosis, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/ptosis/definitions/2050649>.
MLAWebster's. "ptosis" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/ptosis/definitions/2050649>
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