genome-wide association study

Definition of genome-wide association study

genome-wide association study

(JEE-nome ... uh-SOH-see-AY-shun STUH-dee)
A study that compares DNA markers across the genome (the complete genetic material in a person) in people with a disease or trait to people without the disease or trait. These studies may uncover clues to help prevent, diagnose, and treat disease. Also called GWAS.

Source: NCI Dictionary of Cancer Terms