Definition of proptosis in English:


Line breaks: prop|tosis
Pronunciation: /prɒpˈtəʊsɪs


[mass noun] Medicine
  • Abnormal protrusion or displacement of an eye or other body part.
    More example sentences
    • Signs of orbital injury include periorbital ecchymosis, edema, proptosis, and bony step-offs of the orbital rim.
    • The skull is a frequent site of bone metastases, which commonly present as proptosis and periorbital ecchymoses.
    • A 35-year-old man presented with symptoms of decreased visual acuity, proptosis, and ptosis of the left eye that had lasted for 2 weeks.


late 17th century: via late Latin from Greek proptōsis, from pro 'before' + piptein 'to fall'.

More definitions of proptosis

Definition of proptosis in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space