V2EX defoliant

Defoliant

释义 Definition

defoliant(名词):落叶剂/脱叶剂;一种使植物叶片脱落的化学物质,常用于农业(如便于机械采收)或军事用途。也有其他较少见的引申用法,但最常见的是“使叶片脱落的药剂”。

发音 Pronunciation

/difolint/

例句 Examples

The farmer sprayed a defoliant to make harvesting easier.
农民喷洒了脱叶剂,以便更容易收割。

Concerns grew after reports claimed a defoliant had contaminated nearby waterways and harmed local ecosystems.
有报道称脱叶剂污染了附近水道并危害当地生态系统,相关担忧随之加剧。

词源 Etymology

defoliant 来自 **de-**(“去除、使……脱离”)+ **foli-**(源自拉丁语 folium,“叶子”)+ -ant(构成名词,表示“起某种作用的物质/东西”)。字面意思就是“使叶子被去除的东西”。

相关词 Related Words

文学与作品 Literary Works

  • Vietnam War reportage / memoirs(越战报道与回忆录):在描写战争环境破坏时常出现 defoliant(常指与“Agent Orange”相关的脱叶剂)。
  • Environmental non-fiction(环境类非虚构作品):讨论化学品污染、生态影响的书籍与长篇报道中也常用 defoliant 来指代“导致植被落叶的化学药剂”。
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