| NOUN | substance | caffein, caffeine | a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects |
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| Meaning | A bitter alkaloid found in coffee and tea that is responsible for their stimulating effects. | |
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| Synonym | caffeine | |
| Broader | alkaloid | Natural bases containing nitrogen found in plants |
| Substance of | coffee, java | A beverage consisting of an infusion of ground coffee beans |
| tea | A beverage made by steeping tea leaves in water | |
| Spanish | cafeína | |
| Catalan | cafeïna | |
| Adjectives | caffeinic | of or containing caffein |
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