Medical Dictionary


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16. anterior

Located in the front, opposite the posterior

17. antibiotic

Drug used to kill organisms that cause disease. Since some cancer treatments can reduce your body's ability to fight infection, antibiotics may be used to treat or prevent (prophylactic) these infections.

18. antibody

A protein produced by immune system cells and released into the blood. Antibodies defend against foreign agents, such as bacteria. These agents contain certain substances called antigens. Each antibody works against a specific antigen.

19. anticoagulant

Drug that reduces the blood's ability to clot.

20. antifungal

A medicine that kills fungi, organisms that cause infections. Kids undergoing treatment for cancer are especially vulnerable to fungal infections.

21. antigen (an-tuh-jen)

A substance that causes your body's immune system to react. This reaction often involves production of antibodies. For example, your immune system's response to antigens that are part of bacteria and viruses helps you resist infections. Cancer cells have certain antigens that can be found by laboratory tests. They are important in cancer diagnosis and in watching response to treatment.

22. antihistamine

A medicine used to relieve the symptoms of allergies like hives, stuffy nose, etc.

23. bacteria

A term for a group of living organisms, larger than viruses that may be seen only through a microscope. In general, most are harmless unless body resistance is lowered.

24. band

Young, white blood cells; important in defending your body against infection.

25. benign

Not malignant or cancerous.

26. beta-carotene

An early form of vitamin a that is found mainly in yellow and orange vegetables and fruits. it functions as an antioxidant and may play a role in cancer prevention.

27. bilateral

Two sides of your body.

28. bile

A yellow-green fluid made by your liver from discarded red blood cells and excreted into the intestine where it helps to digest fat.

29. biopsy

(buy-op-see) The removal of a sample of tissue to see whether cancer cells are present and to determine an exact diagnosis. there are several kinds of biopsies.

30. blast cells

Refers to the earliest-formed marrow cells. in acute leukemias, blast cells are similar in appearance to normal blast cells but accumulate in large numbers.

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