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.
在战争中使用落叶剂可能会对环境和人类健康造成长期损害。