Dictionary of Medical Terms

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

Filter By Alphabet
All terms that start with the letter E
  • 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

    Bedwetting.

  • 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…

  • epistaxis

    Nosebleed.

  • epithelium

    The layer of cells covering internal and external surfaces of the body.

  • erysipelas

    A febrile (fever-associated) skin infection caused by a group A hemolytic streptococci.

  • erythema

    Redness of the skin.