fatal familial insomnia

noun

: a rare fatal prion disease that is inherited as an autosomal dominant trait, that is marked by progressive neurodegenerative changes especially in the thalamus, and that tends to follow a clinical course exhibiting disturbances of the sleep cycle, intractable insomnia, motor disturbances (as ataxia and myoclonus), disturbances in autonomic nervous system functioning, dementia, coma, and death

Dictionary Entries Near fatal familial insomnia

fatal

fatal familial insomnia

fatality

Cite this Entry

“Fatal familial insomnia.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/fatal%20familial%20insomnia. Accessed 20 Feb. 2024.

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