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Dictionary

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

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  • lymphocyte

    A type of leukocyte (white blood cell) involved in the production of antibodies and the development of immunity.

  • lymphedema

    Swelling of tissue because of the buildup of too much lymph fluid.

  • lymphatic system

    The vessels and structures involved in carrying lymph from the tissues to the blood.

  • lymphangitis

    Inflammation of a lymphatic vessel.

  • lymphadenitis

    Inflammation of the lymph nodes.

  • lymph node

    Any of many small, compact structures lying in groups along the course of the lymphatic vessels and producing lymphocytes.

  • lymph

    Consists primarily of a clear, yellowish fluid and white blood cells. Found in the lymphatic system.

  • Lyme disease

    A disease spread by deer ticks characterized at first by a skin rash, headache and fever, and later by arthritis…

  • luteinizing hormone

    A hormone secreted by the anterior pituitary gland, responsible for stimulating ovulation in the female and testosterone production in the…

  • lupus erythematosus

    A usually chronic inflammatory disease that causes abnormalities of blood vessels and connective tissue in various parts of the…

  • lungs

    The main respiratory organs in the chest where blood is oxygenated.

  • lumbar

    Having to do with the lower back, the loins.

  • lumbago

    Pain in the lower back.

  • LSD

    Lysergic acid diethylamide. A hallucinogenic drug.

  • lordosis

    Forward curvature of the spine, producing a hollow in the back.

  • loins

    The portion of the back between the rib cage and pelvis.

  • lockjaw

    Tetanus infection.

  • lochia

    The discharge from the vagina that occurs for several days to weeks after childbirth.

  • lobotomy

    A surgical operation in which a lobe of the brain, especially the frontal lobe of the cerebrum, is cut into…

  • lobectomy

    Surgical removal of the lobe of an organ.

  • lobe

    1. The fleshy lower part of the ear. 2. A well-defined portion of an organ.

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