NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,886 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.
- direct ophthalmoscopy
- listen (duh-REKT OF-thul-MOS-koh-pee)
- An exam of the inside of the back of the eye using an ophthalmoscope (a flashlight-sized instrument with a light source and a set of rotating lenses).