the prepared leaves of a shrub, or small tree (thea, / camellia, chinensis). the shrub is a native of china, but has been introduced to some extent into some other countries.-a decoction or infusion of tea leaves in boiling water; as, tea is a common beverage.-any infusion or decoction, especially when made of the dried leaves of plants; as, sage tea; chamomile tea; catnip tea.-the evening meal, at which tea is usually served; supper.-to take or drink tea.