myasthenia

American  

[mahy-uhs-thee-nee-uh] / ˌmaɪ əsˈθi ni ə /

noun

Pathology.

1. muscle weakness.

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myasthenia British  

/ ˌmaɪəsˈθɛnɪk, ˌmaɪəsˈθiːnɪə /

noun

1. any muscular weakness

2. short for myasthenia gravis

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Other Word Forms

• myasthenic adjective

Etymology

Origin of myasthenia

First recorded in 1855–60; my- + asthenia

Example Sentences

Nine-time Grand Slam champion Monica Seles has revealed she was diagnosed with myasthenia gravis - a neuromuscular autoimmune disease - three years ago.

From BBC • Aug. 13, 2025

The cause was Parkinson’s disease and myasthenia gravis, said a daughter, Daniella Yitzchak.

From Washington Post • Apr. 17, 2020

Rodrigo Duterte, the controversial president of the Philippines, has revealed he is suffering from the autoimmune disease myasthenia gravis, a condition that could cause serious health complications for the 74-year-old leader.

From The Guardian • Oct. 7, 2019

After a year and a half of tests and several brutal eye surgeries, he was given a diagnosis of myasthenia gravis, a rare autoimmune disease that interferes with the way nerves and muscles communicate.

From New York Times • Jul. 3, 2017

Esophageal paralysis is not uncommon in myasthenia gravis.

From Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery by Jackson, Chevalier