endometriosis A noncancerous condition in which tissue that looks like endometrial tissue grows in abnormal places, most often in the abdomen. Although most women with endometriosis have no symptoms, pelvic pain during menstruation or ovulation can be a symptom of endometriosis. Endometriosis can also be suspected by a physician during a physical examination and confirmed…
endometritis Inflammation of the endometrium, the inner layer of the uterus.
endometrium The inner layer of the uterus.
endonuclease An enzyme that cleaves a nucleic acid (DNA or RNA) at specific sites in the nucleotide base sequence.
endorphin A hormonal compound that is made by the body in response to pain or extreme physical exertion. Endorphins are similar in structure and effect to opiate drugs. They are responsible for the so-called runner’s high, and release of these essential compounds permits humans to endure childbirth, accidents, and strenuous everyday activities.
embryonic hemoglobin See hemoglobin E.
emergency contraceptive See contraceptive, emergency.
emergency medical technician A person trained in the performance of the procedures required in emergency medical care. Abbreviated EMT. EMTs generally work with mobile emergency response teams, such as ambulance or fire and rescue teams. Some EMTs are employed in emergency rooms, and some are hired to be present at sporting events, camps, or other…
emergency supplies kit See disaster supplies.
emesis Vomiting.
emetic Something that causes vomiting. A common emetic is syrup of ipecac.
EMG See electromyogram.