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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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  • liver

    The large organ in the upper right abdomen that functions in digestion and storage of food, disposal of worn-out red…

  • lithotripsy

    A procedure to break up kidney stones into smaller pieces that can more easily pass out of the body.

  • litholysis

    Breaking up of a stone, such as a gallstone.

  • liposuction

    A surgical procedure that changes body shape by removing fat cells.

  • lipoprotein

    Any of a group of proteins combined with a lipid that allow lipids to be transported in the circulatory…

  • lipoma

    Fatty tumor.

  • lipolysis

    The splitting up, or destruction, of fat.

  • lipocyte

    A fat cell.

  • lipid

    Cholesterol, triglycerides and related substances.

  • lingua

    Tongue.

  • limbus

    Margin, or border. The margin of the cornea where it contacts the sclera.

  • lightening

    The feeling of decreased abdominal pressure during the last few weeks of pregnancy caused by the uterus dropping into the…

  • ligature

    A wire or thread used to tie off blood vessels or to close incisions or wounds.

  • ligament

    A tough band of connective tissue connecting bones or holding organs in place.

  • lichen

    Any of various skin diseases characterized by sores and enlarged skin markings.

  • leukoplakia

    Thick, white patches in the mouth that may become malignant.

  • leukopheresis

    Selective removal of the white blood cells from a donor’s blood. The other components of the blood are then returned…

  • leukopenia

    A lower than normal number of leukocytes in the blood.

  • leukocytes

    White blood cells, the blood cells responsible for fighting infection.

  • leukemia

    Cancer of the tissues in the bone marrow, spleen and lymph nodes.

  • lethargy

    A lack of energy; sluggishness, dullness or apathy.

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