1. A laboratory tool consisting of a solid support (usually a glass slide or silicon chip) onto which thousands of DNA or protein samples are attached in a grid pattern, used to analyze gene expression or detect genetic variations.
Usage: technical; molecular biology

Examples

• Researchers used a microarray to measure which genes were active in the cancer cells.
• The microarray technology allowed scientists to analyze thousands of genes simultaneously.
• A DNA microarray can detect mutations across the entire genome in a single experiment.
• The lab invested in a new microarray platform to improve their diagnostic capabilities.
• Microarray analysis revealed significant differences in gene expression between healthy and diseased tissue.