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词汇 defoliate
释义

Definition of defoliate in English:

defoliate

verb diːˈfəʊlɪeɪtdiˈfoʊliˌeɪt
[with object]
  • Remove leaves from (a tree, plant, or area of land), for agricultural purposes or as a military tactic.

    (为农业或军事目的而)使(树木、植物或地区)落叶

    the area was defoliated and napalmed many times

    该地区被施放过落叶剂并被凝固汽油弹轰炸了许多次。

    a defoliated poplar
    Example sentencesExamples
    • They escaped and established a colony that invaded all of the New England states, defoliating trees of many different kinds.
    • A double oscillation is also a possibility, for example if the trees are defoliated by predators and then put out a second growth of leaves.
    • Much of the Vietnamese countryside was defoliated using poisons like Agent Orange, so toxic that even the soldiers who did the spraying suffered long-term damage to their health.
    • Little leaf lindens will certainly be defoliated if Japanese beetles are in the area.
    • Caterpillars are known to defoliate coneflower plants.
    • One thousand caterpillars eating leaves might completely defoliate a tree in two weeks, whereas that same number of aphids would hardly be noted.
    • Gypsy moth larvae have been defoliating huge areas of forest in New England since they were accidentally introduced in 1869.
    • Harris noted that defoliated plants could compensate for lost leaf area and increase in mass relative to non-defoliated plants.
    • The adults and young feed on saltcedar leaves, repeatedly defoliating the tree and depriving it of nutrients.
    • The third step in forcing dormancy is to wait three or four days after spraying and completely defoliate the plant by pulling off the leaves.
    • But late blight attacks quickly and is capable of defoliating a field within a matter of weeks.
    • They thrive in hot, dry weather and can defoliate a rose plant very quickly.
    • They are a voracious pest, and, as I can testify from a couple of years ago, can defoliate an entire bush overnight if left to their own devices.
    • I have to admit that it has come to my garden in numbers that will defoliate plants.
    • At 5 months, plants were partially defoliated or left intact.
    • The chemical was sprayed in large quantities from aircraft in a bid to defoliate the landscape and deny cover to enemy forces.
    • In severe cases, blackspot can severely defoliate a plant.
    • Frosts at any time in the growing season can partially or totally defoliate vines, but they typically remove the outermost leaf layers of a thick canopy.
    • Cereal leaf beetle larvae may defoliate small grain foliage in the spring.
    • Gypsy moths can attack bur oak; oak lacebug can turn the leaves off-color, causing long-term stress that heavily defoliates bur oaks in shelterbelt plantings, especially during dry weather.
    Synonyms
    bare, exposed, desolate, stark, arid, desert, denuded, lunar, open, empty, windswept

Derivatives

  • defoliation

  • noun diːˌfəʊlɪˈeɪʃ(ə)ndiˌfoʊliˈeɪʃ(ə)n
    • While vigorous vines may be able to recover from a single defoliation, repeated defoliation can weaken the vine to the point of death.
      Example sentencesExamples
      • Slug injury to corn may occur before emergence due to feeding activity on the seeds in the furrow or to severe defoliation soon after emergence.
      • We evaluated the costs of leaf height and defoliation in this plant by conducting a replicated field experiment in a forested landscape.
      • Unlike Japanese larch and white pine, defoliated bear oak seedlings showed very little response to partial defoliation.
      • The effects of defoliation depend in part on the timing of defoliation.

Origin

Late 18th century: from late Latin defoliat- 'stripped of leaves', from the verb defoliare, from de- (expressing removal) + folium 'leaf'.

Definition of defoliate in US English:

defoliate

verbdiˈfoʊliˌeɪtdēˈfōlēˌāt
[with object]
  • Remove leaves from (a tree, plant, or area of land), for agricultural purposes or as a military tactic.

    (为农业或军事目的而)使(树木、植物或地区)落叶

    the area was defoliated and napalmed many times

    该地区被施放过落叶剂并被凝固汽油弹轰炸了许多次。

    Example sentencesExamples
    • The chemical was sprayed in large quantities from aircraft in a bid to defoliate the landscape and deny cover to enemy forces.
    • Little leaf lindens will certainly be defoliated if Japanese beetles are in the area.
    • Caterpillars are known to defoliate coneflower plants.
    • The adults and young feed on saltcedar leaves, repeatedly defoliating the tree and depriving it of nutrients.
    • They escaped and established a colony that invaded all of the New England states, defoliating trees of many different kinds.
    • But late blight attacks quickly and is capable of defoliating a field within a matter of weeks.
    • I have to admit that it has come to my garden in numbers that will defoliate plants.
    • A double oscillation is also a possibility, for example if the trees are defoliated by predators and then put out a second growth of leaves.
    • Much of the Vietnamese countryside was defoliated using poisons like Agent Orange, so toxic that even the soldiers who did the spraying suffered long-term damage to their health.
    • They thrive in hot, dry weather and can defoliate a rose plant very quickly.
    • The third step in forcing dormancy is to wait three or four days after spraying and completely defoliate the plant by pulling off the leaves.
    • Harris noted that defoliated plants could compensate for lost leaf area and increase in mass relative to non-defoliated plants.
    • At 5 months, plants were partially defoliated or left intact.
    • Gypsy moths can attack bur oak; oak lacebug can turn the leaves off-color, causing long-term stress that heavily defoliates bur oaks in shelterbelt plantings, especially during dry weather.
    • One thousand caterpillars eating leaves might completely defoliate a tree in two weeks, whereas that same number of aphids would hardly be noted.
    • Frosts at any time in the growing season can partially or totally defoliate vines, but they typically remove the outermost leaf layers of a thick canopy.
    • In severe cases, blackspot can severely defoliate a plant.
    • Gypsy moth larvae have been defoliating huge areas of forest in New England since they were accidentally introduced in 1869.
    • They are a voracious pest, and, as I can testify from a couple of years ago, can defoliate an entire bush overnight if left to their own devices.
    • Cereal leaf beetle larvae may defoliate small grain foliage in the spring.
    Synonyms
    bare, exposed, desolate, stark, arid, desert, denuded, lunar, open, empty, windswept

Origin

Late 18th century: from late Latin defoliat- ‘stripped of leaves’, from the verb defoliare, from de- (expressing removal) + folium ‘leaf’.

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