Aerotitis: Middle ear problems due to changing atmospheric pressures, as when a plane descends to land. Symptoms include ear pain, ringing ears, diminished hearing and, sometimes, dizziness. Also known as aerotitis media, barotitis, barotitis media, and otic barotrauma.
Aesculapius: The ancient Roman god of medicine, whose staff with a snake curled around it is commonly used as a symbol of medicine. According to mythology, Aesculapius’s children included Hygeia, the goddess of health, and Panaceia, the goddess of healing.
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 reads) that “the aetiology […]
Affect: The emotional tone a person expresses. A person’s affect may be appropriate or inappropriate to the situation. One type of inappropriate affect is a flat affect or blunted affect, a common feature of schizophrenia.
- Affective disorder, seasonal (SAD)
Affective disorder, seasonal (SAD): Depression that tends to occur (and recur) as the days grow shorter in the fall and winter. It is believed that affected persons react adversely to the decreasing amounts of light and the colder temperatures as the fall and winter progress. Seasonal affective disorder has not been recognized very long as […]
Afferent: Carrying toward. A vein is an afferent vessel because it carries blood from the body toward the heart. The opposite of afferent is efferent.