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[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.
Origin of deforest
First recorded in 1530-40; de- + forest
Related forms
deforestation, noun
deforester, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for deforest


(transitive) to clear of trees Also disforest
Derived Forms
deforestation, noun
deforester, 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
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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
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deforest in Science
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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