V2EX asphyxiant

Asphyxiant

释义 Definition

窒息剂;致窒息物质:能通过置换氧气(如惰性气体)或干扰机体摄氧/用氧(如一氧化碳、氰化物等)而导致缺氧、窒息甚至死亡的气体或化学物质。(该词也可作形容词,表示“致窒息的”。)

发音 Pronunciation

/sfk.si.nt/

例句 Examples

The safety briefing warned that nitrogen can be an asphyxiant in confined spaces.
安全简报警告说,在密闭空间里氮气可能是窒息剂

Although it is non-toxic in the usual sense, an inert gas can become a lethal asphyxiant by displacing oxygen without any smell or warning.
尽管惰性气体通常意义上并不“有毒”,但它可能在没有气味或预警的情况下通过置换氧气而变成致命的窒息剂

词源 Etymology

asphyxiant 来自 asphyxia(窒息)+ -ant(表示“……的物质/起……作用的东西”)。而 asphyxia 源自希腊语词根,含义与“无脉搏/极度缺氧导致的濒危状态”相关,后来在医学与毒理学语境中固定为“窒息(缺氧)”。

相关词 Related Words

文献与作品 Notable Works

  • Casarett & Doull’s Toxicology: The Basic Science of Poisons(毒理学经典教材,讨论窒息剂/化学性缺氧)
  • Patty’s Industrial Hygiene and Toxicology(工业卫生与毒理学权威参考书,常见于职业暴露语境)
  • The Merck Manual(《默克手册》,医学参考资料中涉及窒息剂与缺氧处理)
  • NIOSH Pocket Guide to Chemical Hazards(NIOSH 化学危害口袋指南,条目中常用 asphyxiant 标注窒息风险)
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