Definition from Wiktionary, the free dictionary
From Greek dys- (mis-, accidental) and arthrosis ἄρθρωσις (articulation).
- Difficulty in articulating words due to disturbance in the form or function of the structures that modulate voice into speech. One of first indicative symptoms of myasthenia gravis brought about by an auto-immune response to acetylcholine receptors.
difficulty in articulating