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defoliant

英 [diː'fəʊlɪənt] 美[,di'folɪənt]
  • n. (美)[农药] 落叶剂;[农药] 脱叶剂

GRE

词态变化


复数: defoliants;

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