Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «A»:
AED (automated external defibrillator)
AED (automated external defibrillator): See: Automated external defibrillator....
Aer-, aero-: Prefix indicating a problem due to
air or gas, such as aerogastria (excess stomach gas.)...
Aerobic: Oxygen-requiring. Aerobic bacteria need oxygen to grow. Aerobic exercise requires the heart and lungs to work harder to meet the body's increased oxygen demand....
Aerobic exercise: Brisk physical activity that requires the heart and lungs to work harder to meet the body's increased oxygen demand. Aerobic exercise promotes the circulation of oxygen through the blood.
Examples of aerobic exercise include running, swimming and cycling....
Aerophagia: Swallowing too much air, a common cause of
gas in the stomach and belching. Everyone swallows small amounts of air when eating or drinking. However, rapid eating or drinking, chewing gum, smoking, or ill-fitting dentures may cause
a significant increase in swallowed air.
The word "p...
Aerophobia: An abnormal and persistent fear of flying.
Sufferers experience severe anxiety even though they usually realize
that the flying does not pose a threat commensurate with their fear.
Aerophobia also means an irrational fear of
fresh air or drafts of air.
Derived from the Greek "aero-",...
Aerosinusitis: Sinus troubles, particularly with pain, due to
changing atmospheric pressures, as when going up or down in a plane. Also called
barosinusitis or sinus barotrauma....
Aerosol: 1. In general, a fine mist or spray which contains minute particles.
2. In medicine, a spray administered by a nebulizer and inhaled for treatment.
3. In medicine, a mist that causes disease as, for example, the hantavirus pulmonary syndrome.
4. In the environment, particles emitted into ...
Aerosolization: The production of an aerosol -- a fine mist or spray containing minute particles. See: Aerosol....
Aerospace medicine: The fields of medicine concerned with the maintenance of health, safety, and performance of those in aviation and space travel. Aerospace medicine is the sum of aviation medicine and space medicine -- health in flight both inside and outside the Earth's atmosphere.
Aerotitis: Middle ear problems due to changing atmospheric pressures,
as when a plane descends to land. The problems include ear pain, ringing, diminished
hearing and, sometimes, dizziness. The word aerotitis (pronounced aer-o-tit-is) is
compounded from aer- + otitis meaning inflammation of the ear....
Aerotitis media: See Aerotitis....
Aesculapius: That stick with the snake curled
around it is the staff (the
rod) of Aesculapius (also called Asklepios), the ancient
god of medicine.
His Greek name was Asklepios and his Roman name
Asklepios may have been a real person who was renowned for
Aetiology: The study of the causes. For example, of a disorder.
The word "aetiology" is mainly used in medicine, where it is the science that deals with the causes or origin of disease, the factors which produce or predispose toward a certain disease or disorder.
Today in medicine one hears (or re...
AFAP: Attenuated familial adenomatous polyposis....