Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «M»:
Mediastinum: The area between the lungs. The organs in this area
include the heart and its large veins and arteries, the trachea, the esophagus, the
bronchi, and lymph nodes....
Medic Alert: Originally,a bracelet that a person could wear to warn medical professionals in an emergency about a serious health problem. In 1953 Linda Collins, the daughter of Dr. Marion Collins and Chrissie Collins, had a near-fatal reaction to a tetanus antitoxin scratch test. The realization tha...
Medicaid: State programs of public assistance to persons regardless of
age whose income and resources are insufficient to pay for health care. The United States
federal government provides matching funds to the state Medicaid programs....
Medical College Admissions Test (MCAT)
Medical College Admissions Test (MCAT): The MCAT is a test that is required of all applicants to medical school in the U.S. and Canada. The MCAT is "a standardized test used to assess applicants' science knowledge, reasoning, and communication and writing skills." The MCAT is given under the aegis o...
Medical device: 1. Broadly, any physical
item used in medical treatment, from a cardiac pacemaker to a wheelchair.
2.In insurance terms,
usually synonymous an assistive device, although it may include items more frequently thought of as medical supplies, such as dressings needed for wound care a...
Medical directives, advance
Medical directives, advance: Advance directives preserve the
person's right to accept or reject a course of medical treatment even after that
person becomes mentally or physically incapacitated to the point of being unable to
communicate those wishes. There are two basic types of advance directives:...
Medical entomology: The branch of science that deals with insects that cause disease or that serve as vectors of organisms that cause disease in humans. In medical entomology, for example, research may pertain to the interactions of the arboviruses and their hosts and involve physiology, genetics, b...
Medical etymology: The
origin of medical words and terms. Etymology is an account of the origins and
the developments in the meaning of a word or term. Medical etymology brings us
into contact with the "history of medicine, of human ideas, and of the human
struggle to understand the forces of na...
Medical geography: An important "new" area of health research that is a hybrid between geography and medicine dealing with the geographic aspects of health and healthcare. Medical geography studies the effects of locale and climate upon health. It aims to improve the understanding of the various fac...
Medical helminthology: The field of medicine that pertains to helminths (worms) capable of disease in people. For more about these worms, see "Helminth."
The public health impact of medical helminths is appreciable. Two billion people are infected by soil-transmitted helminths such as Ascaris, hook...
Medical history: 1. In clinical medicine, the patient's past and present which may contain clues bearing on their health past, present, and future. The medical history, being an account of all medical events and problems a person has experienced, including psychiatric illness, is especially helpful ...
Medical journal, first American
Medical journal, first American: See: First American medical journal....
Medical journals: In 1665 the Royal Society in England published one of the first 2 scientific journals in the world: the "Philosophical Transactions of the Royal Society." The other was the "Journal des Scavants" (Scholars) which appeared in France the same year. From these 2 journals are descend...
Medical jurisprudence: The branch of the law that deals with the application of law to medicine or, conversely, the application of medical science to legal problems. Medical jurisprudence may be involved in cases concerning genetic relationships (eg, paternity testing) or injury or death resulting f...
Medical physics: The science of human health and radiation exposure. Medical physics, also called health physics, is devoted to radiation safety. The international professional body for health physics, the Health Physics Society, notes that:
"For decades, ionizing radiation has been beneficial to h...