de·fo·li·ate

[v. dee-foh-lee-eyt; adj. dee-foh-lee-it, -eyt] verb, de·fo·li·at·ed, de·fo·li·at·ing, adjective
verb (used with object)
1.
to strip (a tree, bush, etc.) of leaves.
2.
to destroy or cause widespread loss of leaves in (an area of jungle, forest, etc.), as by using chemical sprays or incendiary bombs, in order to deprive enemy troops or guerrilla forces of concealment.
verb (used without object)
3.
to lose leaves.
adjective
4.
(of a tree) having lost its leaves, especially by a natural process.

Origin:
1785–1795; < Medieval Latin dēfoliātus, past participle of dēfoliāre, equivalent to Latin dē- de- + foli(um) leaf + -ātus -ate1

de·fo·li·a·tion, noun
de·fo·li·a·tor, noun
un·de·fo·li·at·ed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To defoliate
Collins
World English Dictionary
defoliate
 
vb
1.  to deprive (a plant) of its leaves, as by the use of a herbicide, or (of a plant) to shed its leaves
 
adj
2.  (of a plant) having shed its leaves
 
[C18: from Medieval Latin dēfoliāre, from Latin de- + folium leaf]
 
defoli'ation
 
n
 
de'foliator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Defoliate is one of our favorite verbs.
So is bowdlerise. Does it mean:
to steal or take dishonestly (money, esp. public funds, or property entrusted to one's care); embezzle.
to expurgate (a written work) by removing or modifying passages considered vulgar or objectionable.
Etymonline
Word Origin & History

defoliate
1793, from Mod.L. defoliare, from de- + folium "leaf" (see folio). Earlier in this sense was defoil (c.1600).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
While tent caterpillars can nearly defoliate a tree when numerous, the tree
  will usually recover and put out new leaves.
When they are abundant, leafrollers can defoliate fruit trees completely.
Caterpillars can occasionally defoliate the plants severely.
When abundant, caterpillars can completely defoliate trees.
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