9781422279656

Words to Understand in This Chapter

demographics— statistical data relating to the population and particular groups within it. impurity— something that contaminates or taints a product. laudanum— a solution that contains alcohol and opium, which was used as a painkiller from the fifteenth to the nineteenth centuries. prevalence— the degree or rate at which something happens. synthesize— to create something by combining elements or chemicals into a single solution.