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WordReference Random House Learner's Dictionary of American English © 2024de•fo•li•ate /diˈfoʊliˌeɪt/USA pronunciation v. [ ~ + obj], -at•ed, -at•ing. - Botanyto strip the leaves off.
- Pest Controlto destroy or cause widespread loss of leaves in (an area of jungle).
de•fo•li•a•tion, n. [uncountable] de•fo•li•a•tor, n. [countable]See -foli-. WordReference Random House Unabridged Dictionary of American English © 2024de•fo•li•ate (v. dē fō′lē āt′;adj. dē fō′lē it, -āt′),USA pronunciation v., -at•ed, -at•ing, adj. v.t. - Botanyto strip (a tree, bush, etc.) of leaves.
- Pest Controlto 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.
v.i. - Botanyto lose leaves.
adj. - Botany(of a tree) having lost its leaves, esp. by a natural process.
- Medieval Latin dēfoliātus, past participle of dēfoliāre, equivalent. to Latin dē- de- + foli(um) leaf + -ātus -ate1
- 1785–1795
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