defoliant是什么意思

defoliant
英 [diː'fəʊlɪənt]美 [,di'folɪənt]n. (美)[农药] 落叶剂;[农药] 脱叶剂 «中文词源
defoliant 落叶剂de-, 夺去,损毁。foliage, 叶子。用来指落叶剂。
英文词源
defoliant (adj.)1943, from defoliate + -ant.双语例句
1. 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.来自互联网
2. 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.来自互联网
