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v. de·fo·li·at·ed, de·fo·li·at·ing, de·fo·li·ates
1. To deprive (a plant or a vegetated area, for example) of leaves.
2. To cause the leaves of (a plant or plants) to fall off, especially by the use of chemicals.
To lose foliage.

[Late Latin dēfoliāre, dēfoliāt- : Latin dē-, de- + Latin folium, leaf; see bhel- in Indo-European roots.]

de·fo′li·ate (-ĭt) adj.
de·fo′li·a′tion n.
de·fo′li·a′tor n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.defoliated - deprived of leaves
leafless - having no leaves
References in classic literature ?
formerly defoliated to wreathe the brows of victors and such poets as
Tenders are invited for RR of defoliated rubber and wooden beading, sluice valves, air cocks, pressure release vlaves, surface finishes and connected works of Varuna and Surya Caisson gate at NDV
It will really stand out in the garden when all has defoliated around it in winter, with its green summer leaves turning red in the autumn.
If the tree is not too severely defoliated it can be given preventative treatment, in the spring as the new needles are emerging, with an appropriately labeled fungicide according to label instructions.
Halysidota orientalis Rothschild, which defoliated Morus alba L.
Yup, at PS700 a pop they're getting their tootsies defoliated.
There is no sadder sight in a garden than roses defoliated by black spot leaving a few pathetic blooms perched at the end of leafless branches.
They stand out like a Belisha beacon when all other plants and shrubs have defoliated around it in winter.
Only last week at BBC Gardeners' World Live in Birmingham, the panellists from BBC Radio 4's Gardeners' Question Time told one gardener that gypsy moth was likely to be the culprit behind the webbing which appeared on, and caterpillars which defoliated, his cotoneaster.
1955), a kinetic cone of junk; Joseph Beuys' The Needles of a Christmas Tree (1962), yet another defoliated carcass; and John Heartfield's Oh Christmas Tree in German Soil How Bent Are Thy Branches (1934), in which the sickly branches are morphed into swastikas.
Most likely, they completely defoliated [deprived of leaves] the nearby trees and descended in search of more food," says Schal.