Definition of acalculia in English:



mass nounMedicine
  • Loss of the ability to perform simple calculations, typically resulting from disease or injury of the parietal lobe of the brain.

    • ‘This site gives links to pertinent other sites, including on smoker brain damage, especially acalculia, and an overview of the background on the smoking-gambling connection.’
    • ‘The clinical terms are acalculia, for people like Signora Gaddi who lost her sense of numbers after a stroke, and dyscalculia for people who were born without numbers.’
    • ‘Denburg and Tranel have described three general categories of acalculia, which are summarized in Table 11-1.’
    • ‘This reported acalculia, specifically anarithmetria, is a feature atypical for the pure syndrome of alexia without agraphia.’
    • ‘Testing of acalculia has to encroach both oral and written calculations with clinical and standardized neuropsychological tests.’
    • ‘Patients with acalculia are unable to perform mathematical calculations, although some other numerical processing may still be available to them.’


Early 20th century: from a- ‘not’ + Latin calculare ‘calculate’ + -ia.