[ 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 deforest

British Dictionary definitions for deforest


/ (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 deforest



1880 in modern sense, from de- + forest. Related: Deforested; deforesting. Disforest in the sense "to clear of trees" is from 1660s. Disafforest is attested in this sense from 1842; originally it meant "reduce from the legal status of a forest" (1590s).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for deforest


[ 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.