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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.
1. (Botany) to deprive (a plant) of its leaves, as by the use of a herbicide, or (of a plant) to shed its leaves
2. (Chemistry) to deprive (a plant) of its leaves, as by the use of a herbicide, or (of a plant) to shed its leaves
(Botany) (of a plant) having shed its leaves
[C18: from Medieval Latin dēfoliāre, from Latin de- + folium leaf]
v. -at•ed, -at•ing. v.t.
1. to strip (trees, etc.) of leaves.
2. to cause widespread loss of leaves in (an area of jungle, forest, etc.), as to deprive an enemy of concealment.v.i.
3. to lose leaves.
[1785–1795; < Medieval Latin dēfoliātus, past participle of dēfoliāre= Latin dē- de- + -foliāre, v. derivative of folium leaf]
Past participle: defoliated