Gain a better understanding of medical terminology by searching our dictionary of more than 1,300 terms.


Filter By Alphabet
All terms
  • embolism

    The obstruction of a blood vessel by a clot or mass of foreign material.

  • emesis

    Ejecting the contents of the stomach through the mouth.

  • emphysema

    Chronic lung disease characterized by loss of elasticity of lung tissue and resulting in trapped air in the lung.

  • empyema

    Buildup of pus in a cavity of the body.

  • encephalitis

    A serious infection resulting in inflammation of the brain.

  • encopresis

    Fecal incontinence. Inability to hold feces.

  • endocarditis

    Inflammation or infection of the inside of the heart, often including the heart valves.

  • endocrine glands

    Glands that are ductless and release their secretions directly into the bloodstream.

  • endometriosis

    A condition in which cells from the lining of the uterus are found in other locations within the pelvic cavity…

  • enema

    1. Introduction of fluid into the rectum to bring about a bowel movement. 2. The solution introduced into the rectum…

  • ENT

    The medical specialty of the ear, nose and throat.

  • enteritis

    An inflammation of the intestines that usually causes cramps and diarrhea.

  • enuresis


  • eosinophil

    A type of white blood cell that becomes more abundant in the bloodstream in certain parasitic and allergic conditions.

  • epidemiology

    The study of the causes and control of diseases in human populations.

  • epidermis

    The outermost layer of skin.

  • epididymis

    The elongated structure behind each testicle where sperm are stored.

  • epiglottis

    The flap of cartilage at the base of the tongue that closes the trachea during swallowing to keep food or…

  • epilepsy

    A disorder of the central nervous system that causes convulsions, or seizures.

  • epinephrine

    Adrenaline, a hormone produced in the core of the adrenal glands that’s sometimes used to treat asthma and allergic…

  • episiotomy

    An incision of the perineum (the area between the vagina and anus in women), often performed during labor to minimize…