defoliant
🇺🇸
/diːˈfəʊliənt/
🇬🇧
/diːˈfəʊliənt/
A substance that is used to make the leaves fall off plants. It can be used to damage crops or as a weapon in war.
The use of defoliants in warfare can cause long-term damage to the environment and human health.
在戰爭中使用落葉劑可能會對環境和人類健康造成長期損害。