Embolus
Embolus: A blockage or plug that obstructs a blood ‘vessel. Examples of emboli are detached blood clots, clumps of bacteria, and clumps of other foreign material, such as air.
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- Embryo
Embryo: An organism in the early stages of growth and differentiation, from fertilization to the beginning of the third month of pregnancy (in humans). After that point in time, an embryo is called a fetus.
- Embryonic hemoglobin
Embryonic hemoglobin: Hemoglobin E, the normal embryonic hemoglobin, the main type of hemoglobin found in the human embryo. The E stands for embryonic and also for epsilon, the chain unique to embryonic hemoglobin (which was originally known as Gower-2).
- Embryonal carcinoma
Embryonal carcinoma: A malignant germ cell tumor that occurs most often in the testes and accounts for about 40% of testicular tumors. Under the microscope, these tumors may resemble tissues of early embryos. This type of tumor can grow rapidly and spread outside the testicle. Embryonal carcinoma of the ovary is rare. It usually occurs […]
- Emergency code
Emergency code: While there is no formal definition for a “Code,” doctors often use the term as slang to refer to a patient in cardiopulmonary arrest , requiring a team of providers (sometimes called a “code team”) to rush to the specific location and begin immediate resuscitative efforts. The term “Code” derives from the practice […]
- Emergency contraception
Emergency contraception: The prevention of pregnancy after unprotected vaginal intercourse. Emergency contraception may use drugs related to the female hormones estrogen and progesterone. These “morning-after pill” are similar to birth control pills but generally contain higher hormone doses. Another form of emergency contraception uses an intrauterine device (IUD) inserted by a physician within 5 days […]