1. The branch of molecular biology that studies the entire set of proteins expressed by a genome or cell, including their structure, function, and interactions.
Usage: scientific; used as a mass noun (uncountable); often used in academic and research contexts

Examples

• Proteomics has revolutionized our understanding of how cells function at the molecular level.
• Researchers use proteomics to identify new disease biomarkers in patient blood samples.
• The proteomics lab analyzed thousands of proteins to understand the disease mechanism.
• Advances in proteomics technology have made it easier to study protein interactions.
• Proteomics complements genomics by revealing which genes are actually active in a cell.