A vegetable alkaloid crystallizing in white silky needles, found in the leaves and seeds of the coffee and tea plants, the leaves of guarana…
| 单词 | θ69904 |
| 释义 | the world > matter > chemistry > organic chemistry > alkaloids > [noun] > caffeine (3) caffeine1830 A vegetable alkaloid crystallizing in white silky needles, found in the leaves and seeds of the coffee and tea plants, the leaves of guarana… theine1838 A vegetable alkaloid, originally thought to be a principle peculiar to tea, but found to be identical with caffeine, n. Subcategories:— substance resembling (1) |
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