insurance designed to compensate for particularly large medical expenses due to a severe or prolonged illness, usually by paying a high percentage of medical bills above a certain amount.
Origin: 1950–55; ellipsis of major medical expense insurance plan
Main Entry: major–medical Function: adjective : of, relating to, or being a form of insurance designed to pay all or part of the medical bills of major illnessesusually after deduction of a fixed initial sum
