PTOSIS


Meaning of PTOSIS in English

transcription, транскрипция: [ ˈtō-səs ]

noun

( plural pto·ses -ˌsēz)

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

Date: 1743

: a sagging or prolapse of an organ or part ; especially : a drooping of the upper eyelid

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.