单词	alkaloid
释义	alkaloid /ˈalkəlɔɪd / noun Chemistry Any of a class of nitrogenous organic compounds of plant origin which have pronounced physiological actions on humans. They include many drugs (morphine, quinine) and poisons (atropine, strychnine).Other important alkaloids are caffeine, ricinine, and quinine.... Morphine is an alkaloid, meaning that it is an organic compound that contains carbon, hydrogen and nitrogen, and forms a water-soluble salt. This material is a complex mixture of about 20 different alkaloids or nitrogen containing organic bases. Origin Early 19th century: coined in German from alkali.
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