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.

Retin-A-Micro
(REH-tin … MY-kroh)
A topical preparation of tretinoin that is used to treat acne. Tretinoin is a form of vitamin A.