proptosis

prop·to·sis  (prp-tss)

n. pl. prop·to·ses (-sz)

Forward displacement of an organ, especially an eyeball.

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[Late Latin proptsis, prolapse, from Greek, from propiptein, propt-, to fall forward : pro-, forward; see pro-² + piptein, to fall; see pet- in Indo-European roots.]

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proptosis [prɒpˈtəʊsɪs]

n pl -ses [-siːz]

(Medicine / Pathology) Pathol the forward displacement of an organ or part, such as the eyeball See also exophthalmos Compare prolapse

[via Late Latin from Greek, from propiptein to fall forwards]