NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,812 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.

Theraloc
(THAYR-uh-lok)
A substance being studied in the treatment of some types of cancer. Theraloc binds to a protein called epidermal growth factor receptor (EGFR), which is found on some normal cells and some types of cancer cells. Blocking this protein may help keep cancer cells from growing. Theraloc is a type of monoclonal antibody. Also called nimotuzumab.