One of the mysteries of the English language finally explained.
1A condition causing abnormal weakness of certain muscles.
- ‘Surgical removal of the thymus gland is performed in patients with a thymoma and can also help some other patients, especially those who develop myasthenia before the age of about 45.’
- ‘Unlike myasthenia, however, it is associated with improved strength with repeated muscle activity.’
- ‘Louise suffers from osteoporosis and myasthenia, a muscle weakness which means she needs to sleep for about four hours after every riding lesson.’
- ‘He is receiving plasmapheresis as part of his treatment for myasthenia.’
- 1.1 A rare chronic autoimmune disease marked by muscular weakness without atrophy, and caused by a defect in the action of acetylcholine at neuromuscular junctions.
- ‘It has been useful in treating autoimmune diseases such as myasthenia gravis.’
- ‘The drug was first approved by the FDA as a treatment for myasthenia gravis, a chronic neuromuscular disease.’
- ‘Doctors said a recent checkup indicated he was suffering from an auto-immune disorder called myasthenia gravis, symptoms of which began appearing at the end of last month.’
- ‘Congenital myasthenia gravis is rare and can be excluded by maternal and neonatal history.’
- ‘Patients with myasthenia gravis typically present with weakness, developing with or aggravated by exertion.’
Mid 19th century: modern Latin, from Greek mus ‘muscle’ + asthenia.
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