defoliant是什么意思 defoliant的用法 defoliant怎么读

defoliant

英 [diː'fəʊlɪənt]美 [,di'folɪənt]

n. （美）[农药] 落叶剂；[农药] 脱叶剂

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中文词源

defoliant 落叶剂

de-, 夺去，损毁。foliage, 叶子。用来指落叶剂。

英语词源

defoliant (adj.)

1943, from defoliate + -ant.

权威例句

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

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