NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,916 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.
- aggravating factor
- listen (A-gruh-VAY-ting FAK-ter)
- Something that makes a condition worse. For example, tobacco smoke is an aggravating factor for asthma.