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.
Adj. 1. invasive-relating to a technique in which the body is entered by puncture or incision. medical specialty, medicine-the branches of medical science that deal with nonsurgical techniques. noninvasive-relating to a technique that does not involve puncturing the skin or entering a body cavity.. Of, engaging in, or given to armed aggression: an invasive military force. 2. a. Of or relating to a disease or condition that has a tendency to spread, especially into healthy tissue: an invasive carcinoma. b. Of or relating to a medical procedure in which a part of the body is entered, as by puncture or incision.