Definition - What does Medicare mean?
Medicare is a health insurance program that is offered by the federal government of the United States. Only certain people qualify for Medicare, including people who are 65 or older, who have certain disabilities, or who have end-stage renal disease (permanent kidney failure).
Insuranceopedia explains Medicare
Medicare can be an extremely important source of health insurance for those who can't afford private health insurance and who can no longer work due to age or disability.
Medicare can pay for things such as extended stays in hospital or skilled nursing facilities, some doctor's visits, and outpatient care.