from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The transformation of arable or habitable land to desert, as by a change in climate or destructive land use.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Process by which a geographic region becomes a desert. The change may result from natural changes in climate or by human activity.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the gradual transformation of habitable land into desert; is usually caused by climate change or by destructive use of the land
desert + -ification (“process of becoming”) (Wiktionary)