NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,855 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 (A-loh-PEE-shuh)
The lack or loss of hair from areas of the body where hair is usually found. Alopecia can be a side effect of some cancer treatments.