from The American Heritage® Dictionary of the English Language, 4th Edition
- A semiarid region of north-central Africa south of the Sahara Desert. Since the 1960s it has been afflicted by prolonged periods of extensive drought.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. a region in Africa, between the Sahara to the north and a more humid zone (Sudan) to the south.
From Arabic sahil "border of the desert". (Wiktionary)