Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «O»:
OAE (Otoacoustic emission test)
: OAE is an abbreviation for "otoacoustic emission test" which measures an acoustic response that is
produced by the inner ear (cochlea), which in essence bounces back out of the
ear in response to a sound stimulus. The test is performed by placing a small
Oat cell cancer
Oat cell cancer: A type of lung cancer in which the cells are small, round and resemble oats. Also called small cell lung cancer. ...
Oath of Maimonides
Oath of Maimonides: A prayer that is
said to have been written by the 12th-century physician-philosopher
Moses Maimonides. Like the famous oath of Hippocrates,
the prayer of Maimonides is often recited by new medical graduates.
This prayer, which is also called the "Prayer of Moses
OB: Abbreviation for obstetrician or for
obstetrics, the art and science of managing pregnancy, labor and the
puerperium, the time immediately after delivery....
OB/GYN: A commonly used abbreviation. OB is
short for obstetrics or for an obstetrician, a physician who delivers
babies. GYN is short for gynecology or for a gynecologist, a
physician who specializes in treating diseases of the female
organs. The word "gynecology" comes from the G...
Obese: Well above ones normal weight. A person has traditionally been considered to be obese if they are more than 20 percent over their ideal weight. That ideal weight must take into account the person's height, age, sex, and build.
Obesity has been more precisely defined by the National Institutes...
Obesity: The state of being well above one's normal weight. A person has traditionally been considered to be obese if they are more than 20 percent over their ideal weight. That ideal weight must take into account the person's height, age, sex, and build.
Obesity has been more precisely defined by t...
Obesity, endogenous: Overweight caused by
malfunction of the hormonal or metabolic system....
Obesity, exogenous: Overweight caused by
consuming more food than the person's activity level
warrants, leading to increased fat storage....
Obesity, gynecoid: A fat distribution generally characteristic of that of a woman, around the hips, etc.
Gynecoid means like a woman, womanly, female. The word gynecoid comes from the Greek gyno, gynaikos meaning woman. Gyneco-, gyno-, gyn-, and gyne- are combining forms meaning woman. For example...
Obesity-related disease: Any disease for which obesity is a significant risk factor. Obesity increases the risk of
developing a very large number of diseases, including:
Type 2 (adult-onset) diabetes
High blood pressure (hypertension)
Stroke (cerebrovascular accident or CVA)
Heart attack (...
Objective: In a microscope, the objective (also called the objective lens) is the lens nearest to the object being examined whereas the lens closest to the eye is termed the ocular (the eyepiece).
The light microscope today is usually binocular (with one ocular for each eye) and has a turret bearing...
OBS: 1. Organic brain syndrome.
2. Obstetricians, in the plural....
Observer variation: Failure by the observer to measure accurately, resulting in error.
Observer variation may be due to the observer's missing a measurement, making an incorrect measurement, or misinterpreting data.
Inter-observer variation is the amount of variation between the results obtained ...
Obsessive-compulsive disorder: A psychiatric
disorder characterized by obsessive thoughts and compulsive actions, such as cleaning, checking, counting, or hoarding.
Obsessive-compulsive disorder (OCD), one of the anxiety disorders, is a potentially disabling condition that can persist throughout a ...