| NOUN | substance | poisonous substance, poison, toxicant | any substance that causes injury or illness or death of a living organism |
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| Meaning | Any substance that causes injury or illness or death of a living organism. | |
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| Synonyms | poison, toxicant | |
| Narrower | atropine | A poisonous crystalline alkaloid extracted from the nightshade family |
| hyoscyamine | A poisonous crystalline alkaloid (isometric with atropine but more potent) | |
| toxin | A poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species | |
| Broader | substance | A particular kind or species of matter with uniform properties |
| Spanish | ponzoña, tósigo, toxina, veneno | |
| Catalan | metzina, tòxic, verí | |
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