The term 'Artificial FLAVOR Base' is composed of two words, 'ESTER' and 'FLAVOR'. ESTER is a five-letter word that refers to a class of organic compounds that are derived from an acid and an alcohol. These compounds are used in the production of artificial flavors, which are used to enhance the taste of food products. Artificial FLAVOR bases are used to create a wide variety of flavors, such as fruit, candy, and spices. They are also used to mask unpleasant tastes and odors.