Dictionary

alkaloid

noun al·ka·loid \ˈal-kə-ˌlid\

Definition of ALKALOID

:  any of numerous usually colorless, complex, and bitter organic bases (as morphine or caffeine) containing nitrogen and usually oxygen that occur especially in seed plants and are typically physiologically active
al·ka·loi·dal \ˌal-kə-ˈli-dəl\ adjective

First Known Use of ALKALOID

circa 1831
Medical Dictionary

alkaloid

noun al·ka·loid \ˈal-kə-ˌlid\

Medical Definition of ALKALOID

:  any of numerous usually colorless, complex, and bitter organic bases (as morphine or caffeine) containing nitrogen and usually oxygen that occur especially in seed plants and are typically physiologically active
al·ka·loi·dal \ˌal-kə-ˈlid-əl\ adjective

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