marathon

Drug slang A regionally popular term for amphetamine, especially when taken non-stop for an extended period of time
Sports medicine A foot race measuring 26.2 miles/42.2 km; muscle changes in marathon runners: local muscle tenderness, pain, swelling, inflammation
Vox populi adjective Referring to a prolonged, arduous task, as in a marathon negotiation
noun A prolonged, arduous task, as in ‘negotiating marathon’

marathon

Sports medicine A foot race measuring 26.2 miles/42.2 km; muscle changes in marathon runners: local muscle tenderness, pain, swelling, inflammation. See Ultramarathon.