damiana Syllabification: (dam·i·an·a)Pronunciation: /ˌdamēˈanə/Definition of damiana noun a small shrub native to Mexico whose leaves are used in herbal medicine and in the production of a liqueur. It is reputed to possess aphrodisiac qualities. Turnera diffusa, family Turneraceae Origin:American Spanishdamiana in other Oxford dictionaries Definition of damiana in the British & World English dictionary