NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,777 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 (ay-SY-kloh-veer)
- A substance used to prevent or treat cytomegalovirus and herpes simplex infections that may occur when the body is immunosuppressed. It belongs to the family of drugs called antivirals.