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Microarray
Pronunciation
Definition 1
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. (NCI Dictionary)
Definition 2
A piece of glass or plastic on which different samples have been affixed at separate locations in an ordered manner thus forming a microscopic array. The samples are usually DNA fragments but may also be antibodies, other proteins, or tissues. (NCI Thesaurus)
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