asphyxiant

noun
as·​phyx·​i·​ant | \ -sē-ənt How to pronounce asphyxiant (audio) \

Medical Definition of asphyxiant

: an agent (as a gas) capable of causing asphyxia

More from Merriam-Webster on asphyxiant

Britannica English: Translation of asphyxiant for Arabic Speakers

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