MERRF syndrome
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English[edit]
Etymology[edit]
Short for "myoclonic epilepsy with ragged red fibers".
Noun[edit]
MERRF syndrome (uncountable)
- (medicine, medical genetics) A rare mitochondrial disease characterized by progressive myoclonic epilepsy and clumps of diseased mitochondria that accumulate in the subsarcolemmal region of the muscle fiber and appear as "ragged red fibers" when stained.