[ dee-fawr-ist, -for- ]
/ diˈfɔr ɪst, -ˈfɒr- /

verb (used with object)

to divest or clear of forests or trees: Poor planning deforested the area in ten years.

Nearby words

  1. defoliant,
  2. defoliate,
  3. defoliation,
  4. deforce,
  5. deforciant,
  6. deforestation,
  7. deform,
  8. deformalize,
  9. deformation,
  10. deformed

Origin of deforest

First recorded in 1530–40; de- + forest

Related formsde·for·est·a·tion, nounde·for·est·er, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for deforestation

British Dictionary definitions for deforestation


/ (diːˈfɒrɪst) /


(tr) to clear of treesAlso: disforest
Derived Formsdeforestation, noundeforester, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for deforestation
Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for deforestation


[ dē-fôr′ĭ-stāshən ]

The cutting down and removal of all or most of the trees in a forested area. Deforestation can erode soils, contribute to desertification and the pollution of waterways, and decrease biodiversity through the destruction of habitat.


[ dĭ-fôrĭst ]
Lee 1873-1961

American electrical engineer and inventor who is known as "the father of radio." He patented more than 300 inventions, including the triode electron tube, which made it possible to amplify and detect radio waves.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for deforestation


[ (dee-fawr-uh-stay-shuhn) ]

The process of destroying a forest and replacing it with something else. The term is used today to refer to the destruction of forests by human beings and their replacement by agricultural systems.


Deforestation is considered to be a main contributor to the greenhouse effect.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.