Online Google Dictionary

defoliate 中文解釋 wordnet sense Collocation Usage Collins Definition
Verb
/dēˈfōlēˌāt/,
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defoliated, past participle; defoliated, past tense; defoliating, present participle; defoliates, 3rd person singular present;
  1. Remove leaves from (a tree, plant, or area of land), for agricultural purposes or as a military tactic
    • - the area was defoliated and napalmed many times
  1. strip the leaves or branches from; "defoliate the trees with pesticides"
  2. deprived of leaves
  3. (defoliant) a chemical that is sprayed on plants and causes their leaves to fall off
  4. (defoliation) the loss of foliage
  5. (defoliation) causing the leaves of trees and other plants to fall off (as by the use of chemicals)
  6. A defoliant is any chemical sprayed or dusted on plants to cause its leaves to fall off. A classic example of a highly toxic defoliant used for tactical purposes is Agent Orange, which was used widely by the U.S. military during the Vietnam War from 1961 to 1970.
  7. To remove foliage from one or more plants, most often with a chemical agent
  8. (defoliation) The separation of ripened leaves from a branch or stem; the falling or shedding of the leaves
  9. (defoliant) An herbicide that removes leaves from trees and growing plants.
  10. (Defoliant) A chemical dust or spray applied to plants to cause their leaves to drop off prematurely. Defoliants are frequently applied to cotton in order to facilitate harvesting. ...
  11. (Defoliation) the loss of foliage due to unnatural causes, such as chemicals, frost, or high winds.
  12. (Defoliation) A premature loss of foliage generally caused by stress or disease.
  13. (Defoliation) Leaf pruning, whereby some or all of the leaves are removed to encourage new shoots and smaller leaves which can greatly increase ramification.
  14. (Defoliation) Loss of all or some foliage caused by a chemical treatment or a pest organism.
  15. (Defoliation) The attempt to eliminate enemy hideouts in jungles by using airplanes to spray the land with bio-chemical weapons
  16. (Defoliation) The process when a plant looses all its leaves.
  17. (Defoliation) the shedding of leaves, either as a seasonal normality or as a consequence of disease.
  18. (Defoliation) which can provide short-term dwarfing of foliage for certain deciduous species.
  19. (defoliation) strictly, the removal of plant leaves, but generally the removal of herbaceous material, e.g. by grazing, browsing, or cutting.
  20. (n. defoliation).  To cause the leaves of a plant to fall off due to causes other than ageing or senescence; may be brought about by large number of insects feeding on the leaves.
  21. 1. To cause the leaves of a plant to drop. 2. To remove the leaves of a plant.