alkaloid

An organic base, especially one of a class of substances occurring ready formed in the tissues of plants and the bodies of animals. Note: Alcaloids all contain nitrogen, carbon, and hydrogen, and many of them also contain oxygen. They include many of the active principles in plants; thus, morphine and narcotine are alkaloids found in opium. Pertaining to, resembling, or containing, alkali.

Source: Webster's Revised Unabridged Dictionary (1913), United States public domain. See methodology for full licensing detail. Word validity for game play may differ from any official game dictionary.