Definition of Bell's palsy in English:

Bell's palsy


  • [mass noun] Paralysis of the facial nerve causing muscular weakness in one side of the face.

    • ‘Other viral illnesses such as mumps and rubella may also trigger Bell's palsy.’
    • ‘Her medical history consisted of hypertension, depression, and a right facial nerve palsy secondary to Bell's palsy.’
    • ‘The most alarming symptom of Bell's palsy is paresis; up to three quarters of affected patients think they have had a stroke or have an intracranial tumour.’
    • ‘In severe cases (usually during ascent), increased pressure in the middle ear can cause reversible weakness of the facial nerve and Bell's palsy.’
    • ‘However, since no autopsy was performed, these findings alternatively could have arisen from other diseases, including brain metastases or Bell's palsy.’


Mid 19th century: named after Sir Charles Bell (1774–1842), the Scottish anatomist who first described it.


Bell's palsy

/ˈbɛlz ˌpɔːlzi/