defoliant

noun

1. 落叶剂（有时用作武器）
   a chemical that removes the leaves from plants, sometimes used as a weapon in war

1. （尤用于战时的）脱叶剂
   A defoliant is a chemical used on trees and plants to make all their leaves fall off. Defoliants are especially used in war to remove protection from an enemy.

1. The U.S. Army says it is looking into a report that drums of the Vietnam War-era toxic defoliant Agent Orange were buried at an American military facility in South Korea 33 years ago.
   美国陆军表示，正在调查一则关于一些越南战争时期使用的有毒落叶剂橙剂33年前被埋在韩国的一处美军设施地下的报导。
2. Through statistical observation of falling leaves, a more ideal formula of the defoliant was developed.
   并且通过对落叶规律的观察统计，筛选出比较理想的悬铃木落叶剂配方。
3. Litigation about agent orange, a defoliant and herbicide used by American forces in the Vietnam war, has provided the most extensive judicial discussion of toxic causation.
   关于药剂橙的立法，已经提供了最广泛的有毒物质因果关系的司法讨论。
4. Vietnam is beginning a joint operation with the United States to remove traces of the toxic defoliant Agent Orange.
   越南开始与美国联合开战清除有毒的橙剂（AgentOrange）污染残留的行动。
5. The debate focused on the issue of poisonous leaf-falling agents. Chemical Adjustment and Control of Defoliation of the Plane Tree and Preparation of Defoliant
   争论的核心针对有毒落叶剂的问题。悬铃木集中落叶的化学调控研究及落叶剂的配制筛选
6. Defoliant: Chemical dust or spray applied to plants to cause their leaves to drop off prematurely.
   落叶剂：落叶剂是一种化学粉剂或喷洒剂，施于植物以使树叶提早掉落。
7. Agent orange is a powerful defoliant.
   橙剂是一种强效落叶剂。
8. During the Vietnam war, thousands of hectares of forest were destroyed with chemical defoliant.
   越战期间，数千公顷的森林被化学落叶剂摧毁了。
9. The crash had spilled a noxious defoliant into the planet's ecology, ravaging the native flora.
   这次坠毁将一种有害的落叶剂洒入星球的生态系统中，破坏着当地的植物群。
10. Last century, sodium chlorate was used to be as non-selective contact herbicides, defoliant and even soil sterilant in agricultural history.
    20世纪，氯酸钠曾被作为非选择性除草剂和脱叶剂在农业生产中大量施用。
11. The Preliminary Study on Effect of the Content of Plant Growth Regulator in Cotton Tissue with Defoliant and Its Mechanism
    脱叶剂对棉叶中植物生长调节剂含量的影响及脱叶机理初步研究
12. It will be useful for picking of machine with manpower controlling, but the impact of defoliant will influence the machine picking.
    采用人工调控脱叶有利于机械采收，但是脱叶剂脱叶效果将影响机械采收。

noun

1. a chemical that is sprayed on plants and causes their leaves to fall off