Poison

Mandarin:
毒物 (In the context of catalysis, "催化剂毒物" (cuī huà jì dú wù) is more accurate)
Explanation in English Language (EN):
A substance that inhibits the activity of a catalyst. Poisons can bind to the active sites of a catalyst, preventing it from effectively catalyzing reactions.
Explanation in Mandarin (ZH):
抑制催化剂活性的物质。毒物可以结合到催化剂的活性位点,阻止其有效地催化反应。(yì zhì cuī huà jì huó xìng de wù zhì. dú wù kě yǐ jié hé dào cuī huà jì de huó xìng wèi diǎn, zǔ zhǐ qí yǒu xiào de cuī huà fǎn yìng.)
International Phonetic Alphabet (IPA)
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