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.
Medical Definition of ANEURYSM. : an abnormal blood-filled dilatation of a blood vessel and especially an artery resulting from disease of the vessel wall. â anÂ·euÂ·rysÂ·mal also anÂ·euÂ·risÂ·mal \Ëan-yÉ-Ëriz-mÉl\ adjective. â anÂ·euÂ·rysÂ·malÂ·ly \-Ä\ adverb.edical Definition of ANEURYSM. : an abnormal blood-filled dilatation of a blood vessel and especially an artery resulting from disease of the vessel wall. â anÂ·euÂ·rysÂ·mal also anÂ·euÂ·risÂ·mal \Ëan-yÉ-Ëriz-mÉl\ adjective. â anÂ·euÂ·rysÂ·malÂ·ly \-Ä\ adverb.