NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,856 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.
- listen (i-REH-suh)
A drug that is used to treat certain types of non-small cell lung cancer and is being studied in the treatment of other types of cancer. It is a type of epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor. Also called gefitinib and ZD1839.