NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,800 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

inferior vena cava
(in-FEER-ee-er VEE-nuh KAY-vuh)
A large vein that empties into the heart. It carries blood from the legs and feet and from organs in the abdomen and pelvis.