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 (PAYR-uh-SIH-tik)
- Having to do with or being a parasite (an animal or plant that gets nutrients by living on or in an organism of another species).