Definition: The word "bcoe" refers to a book called "Bible Containing the Whole Testament of the Old and New Testaments, Together with the Decalogue, Pentecost, and Prophets." It's important in Christian theology as it contains the entire Bible from Genesis to Revelation. The term "vrrtlolaia" means "bible," similar to the Greek word "vulgaris," which refers to the lower part of a book.