Major geographical features of Botswana. The Kalahari a waterless place, a vast arid to semi-arid area in Southern Africa covering much of Botswana and parts of Namibia and South Africa.
Medical Definition of bypass. : a surgically established shunt cardiopulmonary bypass of blood from the right atrium to the aorta; also : a surgical procedure for the establishment of a shunt âWhen a bypass is performed on more than one coronary artery or branch, the number of times (double, triple, etc.) is often specified. bypass.
Coronary Artery Bypass Grafting. Coronary Artery Bypass Grafting (CABG), or bypass surgery, is a surgical operation in which the surgeon uses a section of vein, usually from the patientâs leg or an artery from inside the patientâs chest to create a new route for oxygen-rich blood to reach the heart muscle.