Definition of aphasia in English:

aphasia

noun

Medicine
  • [mass noun] Inability (or impaired ability) to understand or produce speech, as a result of brain damage.

    Compare with aphonia
    • ‘I'm mindful how fortunate I am that I recovered from aphasia, when for many people who have suffered brain damage the condition can be a permanent state of mind.’
    • ‘Initially expected to make a satisfactory recovery from the head injury, she subsequently suffered a stroke that left her with aphasia, diminished cognitive abilities, and a seizure disorder.’
    • ‘He was able to map language centers in the brain by observing lesions in patients suffering from aphasia.’
    • ‘I had not had seizures like this before - not with such severe aphasia, such an inability to ask for help and to help myself.’
    • ‘The stroke also caused a severe expressive aphasia, which left her able to say only two words.’

Origin

Mid 19th century: from Greek, from aphatos speechless, from a- not + phanai speak.

Pronunciation:

aphasia

/əˈfeɪzɪə/