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.

fifth cranial nerve
(fith KRAY-nee-ul nerv)
The main sensory nerve of the head and face, and the motor nerve of the muscles used in chewing. Also called trigeminal nerve.