TO RETAIN, practice. To engage the services of an attorney or counsellor to manage a cause, at which time it is usual to give him a fee, called the retaining fee. The act by which the attorney is authorized to act in the case is called a retainer.
One explanation for the difference in the levels of catechins found in this study and others is the type of samples used. In comparative studies, leaves of Camellia sinensis 4 Discussion Table 1. Levels of catechins and caffeine in tea bags, extract, and ready-to-drink green tea.
1. Camellia sinensis or its dried leaves, which contain caffeine, theophylline, tannic acid, and a volatile oil. Tea is either green or black depending on the curing method. 2. a decoction of these leaves, used as a stimulating beverage or soothing drink for various abdominal discomforts.