robusta Syllabification: (ro·bus·ta)Pronunciation: /rōˈbəstə/Definition of robusta noun 1coffee or coffee beans from a widely grown kind of coffee plant. Beans of this variety are often used in the manufacture of instant coffee. 2the tropical West African bush of the bedstraw family that produces these beans. Coffea canephora (formerly robusta), family Rubiaceae Origin: early 20th century: modern Latin, feminine of Latin robustus 'robust'robusta in other Oxford dictionaries Definition of robusta in the British & World English dictionary