Source : WordNet®

CABG
     n : open-heart surgery in which the rib cage is opened and a
         section of a blood vessel is grafted from the aorta to
         the coronary artery to bypass the blocked section of the
         coronary artery and improve the blood supply to the heart
         [syn: {coronary bypass}, {coronary bypass surgery}, {coronary
         artery bypass graft}]