(Portuguese: “Great Portuguese and Brazilian Encyclopaedia”), 37-volume Portuguese dictionary-encyclopaedia published in Lisbon and Rio de Janeiro (1935–57), with a 3-volume appendix (1958–60). A second part, covering Brazilian subjects, was begun in 1964 and was projected for four volumes, including biographies of living persons.

The main set treats Portuguese words, including Brazilian usages, technical terms, and modern slang; biographies, which include living persons; and encyclopaedic articles covering all aspects of Portuguese life, in Portugal and its former overseas territories and including history and culture, national institutions, and flora and fauna. There are more than 15,000 illustrations.