1. Laboratory devices consisting of thousands of microscopic spots of DNA or other biological molecules attached to a solid surface, used to analyze gene expression and detect genetic variations.
Usage: technical; plural form of microarray; commonly used in molecular biology and genomics research

Examples

• Researchers used microarrays to compare gene expression levels between healthy and diseased tissue samples.
• DNA microarrays have revolutionized the study of genomics by allowing simultaneous analysis of thousands of genes.
• The laboratory invested in new microarray technology to improve their diagnostic capabilities.
• Microarrays enabled scientists to identify which genes were active in different cell types.
• The data from the microarrays revealed unexpected patterns in gene regulation.