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agrammatism

American  
[ey-gram-uh-tiz-uhm, uh-gram-] / eɪˈgræm əˌtɪz əm, əˈgræm- /

noun

Pathology.

  1. a type of aphasia, usually caused by cerebral disease, characterized by an inability to construct a grammatical or intelligible sentence while retaining the ability to speak single words.

Etymology

Origin of agrammatism

1880–85; < Greek agrámmat ( os ) illiterate ( a- a- 6 + grammat- (stem of grámma letter) + -os adj. suffix) + -ism

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.