NCI Dictionary of Cancer Terms
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.
- listen (… NY-troh … AR-jih-neen)
- A form of the amino acid arginine. An amino acid is a protein building block. NG-nitro-L-arginine is being studied in the treatment of cancer and other conditions. In cancer, it may stop the growth of tumor cells by blocking certain proteins needed for tumor cells to grow and by blocking blood flow to the tumor. It is a type of nitric oxide synthase inhibitor and an antiangiogenesis agent. Also called nitroarginine.