|materia medica (məˈtɪərɪə ˈmɛdɪkə)|
|1.||the branch of medical science concerned with the study of drugs used in the treatment of disease: includes pharmacology, clinical pharmacology, and the history and physical and chemical properties of drugs|
|2.||the drugs used in the treatment of disease|
|[C17: from Medieval Latin: medical matter]|
|a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S.|
|(used as a nonsense word by children to express approval or to represent the longest word in English.)|
materia medica materia med·i·ca (měd'ĭ-kə)
The branch of medical science that deals with the origin, preparation, dosage, and administration of drugs.