NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,847 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.
- affinity reagent
- listen (uh-FIH-nih-tee ree-AY-jent)
- In chemistry and biology, a compound that binds specific substances, such as proteins or nucleic acids. Many affinity reagents are antibodies. They are used to analyze tissue samples to help diagnose diseases.