noun, Pathology. 1. the accumulation of excessive ketones in the body, as in diabetic acidosis. Origin of ketosis. 1915-1920.
Climate zones of Africa, showing the ecological break between the hot desert climate of the Sahara Desert (red), the hot semi-arid climate of the Sahel (orange) and the tropical climate of Central and Western Africa (blue).
In addition to being extremely dry, the Sahara is also one of the hottest regions in the world. The average annual temperature for the desert is 86Â°F (30Â°C) but during the hottest months temperatures can exceed 122Â°F (50Â°C), with the highest temperature ever recorded at 136Â°F (58Â°C) in Aziziyah, Libya.eography of the Sahara Desert. There are also several mountain ranges within the Sahara and many are volcanic. The highest peak found in these mountains is Emi Koussi, a shield volcano that rises to 11,204 ft (3,415 m). It is a part of the Tibesti Range in northern Chad.