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.
Definition of bypass. 1  1 : a passage to one side; especially : a deflected route usually around a town. 2  2a : a channel carrying a fluid around a part and back to the main streamb (1) : shunt 1b (2) : shunt 1c; also : a surgical procedure for the establishment of a shunt have a coronary bypass.