ptosis

play
noun pto·sis \ˈtō-səs\

Definition of ptosis

plural

ptoses

play \-ˌsēz\
  1. :  a sagging or prolapse of an organ or part; especially :  a drooping of the upper eyelid

Origin and Etymology of ptosis

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


First Known Use: 1710


Medical Dictionary

ptosis

play
noun pto·sis \ˈtō-səs\

Medical Definition of ptosis

plural

ptoses

\-ˌsēz\play
  1. :  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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