ptosis

noun pto·sis \ ˈtō-səs \

Definition of ptosis

plural ptoses play \ˈtō-ˌsēz\
: a sagging or prolapse of an organ or part; especially : a drooping of the upper eyelid

Recent Examples of ptosis from the Web

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Origin and Etymology of ptosis

New Latin, from Greek ptōsis act of falling, from piptein


Medical Dictionary

ptosis

noun pto·sis \ ˈtō-səs \

medical Definition of ptosis

plural ptoses play \-ˌsēz\
: a sagging or prolapse of an organ or part
  • renal ptosis
; especially : a drooping of the upper eyelid (as from paralysis of the oculomotor nerve)

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