Webster's New World Medical Dictionary

Medical College Admissions Test
A test that is
required of all applicants to medical school in the
US and Canada, which assesses applicants’ science
knowledge, reasoning, and communication and
writing skills. It is given under the aegis of the
Association of American Medical Colleges.
Abbreviated MCAT.
medical directive, advance
See 
advance
directive.
medical examiner
A physician (pathologist)
who performs an autopsy when the cause of death is
suspicious, including cases when death is acciden-
tal or violent. The physician may also serve in some
jurisdictions as the coroner.
Medical Literature Analysis and Retrieval
System
See 
MEDLARS.
medical symbol
See 
Aesculapius.
Medicare
The US government’s national health
insurance program for people aged 65 and older
who have worked for at least 10 years in Medicare-
covered employment, and who are citizens or per-
manent residents of the US. Medicare Part A covers
inpatient hospital stays, and Medicare Part B covers
physician and outpatient services.
medication 1
A drug that is used to medicate, a
medicine, or a medicament or medical substance.
Although the terms medication and drug are some-
times used interchangeably, the term medication is
not used to speak of a recreational substance. 
2
The administration of a drug or medicine.
medicine, occupational
See 
occupational
medicine.
medicine, transfusion
See 
transfusion
medicine.
MedicineNet.com
A premier online health and
medical information website. MedicineNet.com
provides easy-to-read, in-depth, authoritative med-
ical information for consumers. Since 1996,
MedicineNet.com has become nationally recognized
for providing quality information that is produced
by a network of board-certified physicians from
across the US.