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Tonic spasm or temporary rigidity of one or more muscles, often characteristic of various muscular disorders.

my′o·ton′ic (-tŏn′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.myotonic - of or relating to or caused by myotonia
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References in periodicals archive ?
* The report reviews pipeline therapeutics for Myotonic Dystrophy by companies and universities/research institutes based on information derived from company and industry-specific sources
Myotonic dystrophy type 1 (DM1) is the most common disease causing muscle weakness and atrophy in adults.[sup][1] The prevalence of DM1 in China is not clear.
Of these the most common neuromuscular causes are congenital myopathies, congenital myotonic dystrophy, and spinal muscular atrophy 4,5.
Purpose: Myotonic dystrophy (DM1), a genetic, multisystemic disorder, is the most prevalent adult form of muscular dystrophy.
No flowers by request, donations if so desired to Myotonic Dystrophy and Christ Church.
* A recent review published in PLOS One found an association between the diabetes medication and a significant reduction in the risk of colorectal, liver, pancreatic, stomach, and esophagus cancers in patients with myotonic dystrophy type II, an inherited disorder of the muscles and other body systems.
In its first-ever guidance on genetic conditions in pregnancy, the ACOG Committee on Genetics outlined the key features of certain maternal genetic conditions, including cystic fibrosis, Marfan syndrome, neurofibromatosis type 1, tuberous sclerosis, autosomal dominant polycystic kidney disease, classic phenylketonuria, Noonan syndrome, and myotonic dystrophy type 1 (Obstet Gynecol.
Although only approximately 20 of these conditions have been identified, they include some of the commoner genetic conditions, such as fragile X mental retardation syndrome, myotonic dystrophy, Huntington disease (HD) and a number of the spinocerebellar ataxias.
[USPRwire, Sat Mar 07 2015] Global Markets Direct's, 'Myotonic Dystrophy - Pipeline Review, H1 2015', provides an overview of the Myotonic Dystrophy's therapeutic pipeline.
Your goat can faint (yes, indeed, that's the Myotonic who falls over when startled), he can fit into a dog crate (the Pygmy goat), he can help you make a sweater (the Cashmere), or you can rescue him from the clutches of extinction (the beautiful Arapawa goat of New Zealand, which is not easily found in domestic captivity today).
25th after a long battle with Myotonic Muscular Dystrophy surrounded by her loving family.