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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 of ptosis

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


First Known Use: 1743


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)




Learn More about ptosis

  1. Medical Dictionary: Definition of "ptosis" Britannica.com: Encyclopedia article about "ptosis"


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