- (pathology) A partial or total loss of language skills due to brain damage. Usually, damage to the left perisylvian region, including Broca's area and Wernicke's area, causes aphasia.
- 1865, “Discussions upon Aphasia”, in Medical and Surgical Reporter, volume 8, page 197:
- The very disease aphasia is to most of us a new one; and we venture to say that even yet no one can give a satisfactory definition of Trousseau's new term.
- 1865, J. T. Banks, “On the Loss of Language in Cerebral Disease”, in Dublin quarterly journal of medical science, volume 39, page 63:
- Of one form of aphasia we have an accurate description by Van Swieten, in his chapter on apoplexia:―"Vidi plures, qui ab apoplexiâ curati omnibus functionibus cerebri recte valebant, nisi quod deesset, hoc unicum, quod non possent vera rebus designandis vocabula invenire."
- 1888, Rudyard Kipling, "The Conversion of Aurelian McGoggin" in Plain Tales from the Hills, Folio 2005, p. 76:
- The Doctor came over in three minutes, and heard the story. ‘It's aphasia,’ he said.
pathological speech disorder