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myotonia Line breaks: myo|tonia
Pronunciation: /ˌmʌɪə(ʊ)ˈtəʊnɪə/

Definition of myotonia in English:


[mass noun] Medicine
Inability to relax voluntary muscle after vigorous effort.
Example sentences
  • Myotonic dystrophy, the most common form of muscular dystrophy in adults, affects the eyes, heart, hormonal systems, and blood, in addition to causing muscular dystrophy and involuntary muscle stiffness (myotonia).
  • Hereditary defects in the channels are known to cause many diseases, including dominant and recessive myotonia, Bartter's syndrome, and Dent's disease.
  • In several small studies, selenium supplementation seemed to have an effect on myotonia.


Pronunciation: /ˌmʌɪə(ʊ)ˈtɒnɪk/
Example sentences
  • In addition, diseases resulting in impaired contraction of striated muscle, such as myasthenia gravis or myotonic dystrophies, may demonstrate similar abnormalities.
  • The researchers will focus on myotonic and facioscapulohumeral muscular dystrophies.
  • And I went to the clinic to see if I had a thing called myotonic muscular dystrophy, which is also known as Steinert's disease.


Late 19th century: from myo- 'muscle' + Greek tonos 'tone'.

Definition of myotonia in:
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