Dictionary

proptosis

noun prop·to·sis \präp-ˈtō-səs, prō-ˈtō-\

Definition of PROPTOSIS

:  forward projection or displacement especially of the eyeball
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Origin of PROPTOSIS

New Latin, from Late Latin, falling forward, from Greek proptōsis, from propiptein to fall forward, from pro- forward + piptein to fall — more at pro-, feather
First Known Use: 1676
Medical Dictionary

proptosis

noun pro·pto·sis \(ˈ)prō-ˈtō-səs, präp-ˈtō-\
plural pro·pto·ses \-ˌsēz\

Medical Definition of PROPTOSIS

:  forward projection or displacement especially of the eyeball

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