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, known as bypass surgery, is one of the most common major surgeries in the United States. Each year, literally tens of thousands of patients undergo this procedure, which is designed to increase the flow of oxygen-rich blood to the heart muscle and thus prevent a heart attack.