筋きん痛つう性せい脳のう脊せき髄ずい炎えんきんつうせいのうせきずいえんMeanings1nounmyalgic encephalomyelitis; MEmedicine›Medical term for a chronic condition characterized by severe fatigue and post-exertional malaise; often discussed alongside chronic fatigue syndrome (慢性疲労症候群).See also: 慢性疲労症候群筋きん痛つう