The definition of antiseptic is something that is germ free, something that is very clean or something that eliminates germs. An example of something that is antiseptic are doctors tools.
Related to MERRF syndrome: ragged red fibres, MELAS syndrome. myoclonus with epilepsy and ragged red fibers; a familial type of mitochondrial encephalopathy, of maternal (mitochondrial) inheritance. abbreviation for myoclonus with epilepsy and with ragged red fibers, a familial syndrome of maternal (mitochondrial) inheritance.
Fatal Familial Insomnia (FFI) is a rare sleep disorder. It's genetic, and has been diagnosed in less than 40 families worldwide. Perhaps the most famous case is that of the Chicago music teacher, Michael Corke, who featured in the BBC documentary The Man Who Never Slept. FFI is a truly dark disease.