Noun
an Apocryphal book of angelic revelations
Source: WordNetCritical editions generally have settled on the Vulgate naming conventions, where Ezra and Nehemiah were 1 and 2 Esdras, Esdras A is 3 Esdras, and the Latin Apocalypse of Ezra is 4 Esdras (Charlesworth's Old Testament Pseudepigrapha). Source: Internet