noun Pathology.
any of certain disorders of articulation, as stammering or stuttering, caused by a nerve defect.

1875–80; < Neo-Latin, equivalent to dys- dys- + Greek árthr(on) joint + -ia -ia

dysarthric, adjective
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World English Dictionary
dysarthria (dɪsˈɑːθrɪə)
imperfect articulation of speech caused by damage to the nervous system
[from dys- + arthria from Greek arthron articulation]

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American Heritage
Medical Dictionary

dysarthria dys·ar·thri·a (dĭs-är'thrē-ə)
Difficulty in articulating words due to emotional stress or to paralysis, incoordination, or spasticity of the muscles used in speaking.

dys·ar'thric adj.
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