NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,176 terms related to cancer and medicine.

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microarray
(MY-kroh-uh-RAY)
A laboratory tool used to analyze large numbers of genes or proteins at one time. In a microarray, biologic molecules such as DNA, RNA, or protein are placed in a pattern onto a surface such as a glass slide. Other substances are added to these slides to detect specific patterns of molecules. Microarrays are being used to help diagnose diseases, such as cancer, and to develop treatments for them.