Dictionary of Medical Terms

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

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All terms that start with the letter K
  • Kaposi's sarcoma

    Bluish-purple nodules of the skin that often bleed. These frequently occur in people who have AIDS.

  • keloid

    Excessive growth of scar tissue on the skin.

  • keratin

    The main protein of skin, hair and nails.

  • keratitis

    Inflammation of the cornea of the eye.

  • keratoconus

    A deformity of the cornea in which the cornea resembles the end of a football.

  • ketones

    The initial breakdown products of fatty acid metabolism. Unavailability of carbohydrates from starvation or uncontrolled diabetes mellitus increases the production…

  • kidney

    A pair of organs in the upper abdominal cavity that separate the body’s water and waste products from the blood…

  • knee

    The complex hinge joint of the upper and lower leg involving the femur, tibia and patella.

  • knock-knee

    A deformity in which the knees rub together or touch each other in walking.