From HomoExcelsior

1. A substance that causes injury, illness, or death, especially by chemical means. 2. Something destructive or fatal. 3. a catalyst poison. 4. To kill or harm with poison. 5. poisoning arrows; poisoned the drink. 6. contaminate 7. Jealousy poisoned their friendship. 8. To inhibit (a substance or reaction). 9. Poisonous.

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