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Longman Dictionary of Contemporary English
defoliate
verb
EXAMPLES FROM CORPUS
▪ Across the river, the Viet Cong territory was a number of scalped hills: it had been defoliated.
▪ So far, some sixty million acres of Eastern and Midwestern forest have been defoliated over the years.
▪ The adults defoliate plants, and the larvae feed on roots.
▪ The forest had already been defoliated and the oaks and aspens were expending precious energy sending out a second flush of leaves.
▪ The leaves are evergreen or semi-evergreen since they can be heavily defoliated in severe winters.
▪ The worst single year was 1981, when twelve million acres were defoliated.
▪ These same nitrogen oxides, in high but apparently plausible concentrations, will defoliate plants.
▪ These trees are eaten but not defoliated.
The Collaborative International Dictionary
defoliate

defoliate \de*fol"i*ate\, v. t. [LL. defoliare, to shed leaves; L. de- + folium leaf: cf. F. d['e]foliation.] to cause (a plant) to shed its leaves.

Douglas Harper's Etymology Dictionary
defoliate

1793, perhaps a back-formation from defoliation. Earlier in this sense was defoil (c.1600). Related: Defoliated; defoliating.

Wiktionary
defoliate
  1. Deprived of leaves; defoliated. v

  2. (context transitive English) To remove foliage from (one or more plants), most often with a chemical agent.

WordNet
defoliate

v. strip the leaves or branches from; "defoliate the trees with pesticides"

defoliate

adj. deprived of leaves [syn: defoliated]

Usage examples of "defoliate".

Among their ranks were engineers who, with the aid of the Republic's technology, could turn streams into rivers and lakes into oceans, who could thoroughly defoliate a planet twice the size of Jupiter, who could change the ecology of an arid world and turn it into a planetary oasis.

Ever since Doradus IV, when the Navy had destroyed an entire sentient population while defoliating the world prior to mining it—from the air Doradusians bore a striking resemblance to cabbages—a number of alien worlds had closed their doors to the Republic's commerce.

In ancient times, when we were still earthbound, they used elephants to help defoliate the forests and wild places in which they lived, and when they were done the elephants all died from lack of habitat.

However, rather than try to convince other governments to defoliate millions of acres of marijuana and coca, it makes sense to attack further down the chain, at the drug manufacturing plants.

It was a Federal flight garrison at the edge of the defoliated ribbon of land that ran around O-Zone.

Someone sneezedthe dust was terrible here because of the defoliated perimeter.

As the MIL followed the defoliated line, it adopted the appearance of a road.

The crop was a mutant but bountiful one, and it was believed that Garuda provided largely defoliated Optera with much of its needed supply of nutrient.

And this was not the defoliated Optera of their ravenous present, but the edenic homeworld of their racial past-a verdant wonderland, with fields of Flowers basking in the warmth of the planet's twin suns, stretching as far as the eye could see across a landscape of arcadian beauty.

Past beaches and small-craft harbors, through parks that had been defoliated of low shrubbery but not freed of the lurking violent.

It's Betty, who shared a cube with her at Fleischer and Fleischer until Rho left about a year ago for these fresh-looking pastures of now defoliated opportunity.

Ranch Hand defoliated every province in South Vietnam, the DMZ between North and South Vietnam, Laos, all of the Ho Chi Minh Trail, and even parts of North Vietnam.

The entire block of buildings had been constructed under a single roof, and aside from a couple dozen vent pipes poking up like defoliated shrubs, the rooftop stretched flat and open.

Jake seldom left the disinfected, mostly defoliated, electronically protected confines of Mira City.

Actually, it’s a scheme to address our mammoth coke jones by defoliating the coca fields of Colombia.