Adjacent Words

myasthenia definitions

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WordNet (r) 3.0 (2005)

n
1: a chronic progressive disease characterized by chronic fatigue and muscular weakness (especially in the face and neck); caused by a deficiency of acetylcholine at the neuromuscular junctions [syn: myasthenia gravis, myasthenia]
2: any muscular weakness

Merriam Webster's

noun Etymology: New Latin Date: circa 1856 muscular debility; also myasthenia gravis • myasthenic adjective or noun

Oxford Reference Dictionary

n. a condition causing abnormal weakness of certain muscles. Etymology: mod.L f. Gk mus muscle: cf. ASTHENIA