[prop.to.sis] n [NL, fr. LL, falling forward, fr. Gk proptosis, fr. propiptein to fall forward, fr. pro- forward + piptein to fall--more at pro-, feather] (1676): forward projection or displacement esp. of the eyeball
PROPTOSIS
Meaning of PROPTOSIS in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012