| 单词 | alkaloid |
| 释义 | alkaloid /al"keuh loyd'/, Biochem., Chem., Pharm. n. 1. any of a large class of organic, nitrogen-containing ring compounds of vegetable origin and sometimes synthesized, some of which are liquid but most of which are solid, that have a bitter taste, that are usually water-insoluble and alcohol-soluble, that combine with acids without the loss of a water molecule to form water-soluble hydrochlorides, hydrobromides, or the like, and that usually exhibit pharmacological action, as nicotine, morphine, or quinine. adj. 2. resembling an alkali; alkaline. [1825-35; ALKAL(I) + -OID] |
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