Definition of paramyotonia in US English:

paramyotonia

noun

Medicine
  • Atypical myotonia; specifically (more fully "congenital paramyotonia", "paramyotonia congenita") a familial (autosomal dominant) disorder characterized by attacks of myotonia typically triggered by exposure to cold, with intermittent flaccid muscle weakness, caused by mutations of the skeletal muscle sodium channel.

Origin

Late 19th century; earliest use found in William Richard Gowers (1845–1915), physician. From para- + myo- + -tonia, after German Paramyotonie.

Pronunciation

paramyotonia

/ˌparəmʌɪə(ʊ)ˈtəʊnɪə/