عُياء

(طب) داءٌ شديد لا طبَّ له ولا بُرْءَ منه، وهو الداء العُضال، كأنَّه أعيا الأطبَّاء.

🇬🇧 Translation:

(Medicine) An incurable and severe disease, which is the chronic/fatal disease, as if it baffled doctors.