A form of aphasia characterized by the inability to perform simple mathematical problems; found with lesions of various areas of the cerebral hemispheres, and often an early sign of dementia. [G. a- priv. + L. calculo, to reckon]
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acal·cu·lia .ā-.kal-'kyü-lē-ə n lack or loss of the ability to perform simple arithmetic tasks
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n.
an acquired inability to make simple mathematical calculations. It is a symptom of disease in the parietal lobe of the brain. See Gerstmann's syndrome.
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acal·cu·lia (a″kal-kuґle-ə) [a-1 + L. calculare to reckon + -ia] inability to do simple arithmetical calculations. Cf. dyscalculia.Medical dictionary. 2011.