Definition of papilloedema in US English:

papilloedema

(also papilledema)

noun

Medicine
  • Oedema or swelling of the optic disc, often due to increased intracranial pressure.

Origin

Early 20th century; earliest use found in John Herbert Parsons (1868–1957), ophthalmologist and physiologist. From papilla + oedema, after German Papillenödem.

Pronunciation

papilloedema

/ˌpapɪlɪˈdiːmə/