Definitions for "Unparsed entity"
From Extensible Markup Language (XML) 1.1 ( 2004-02-04) An unparsed entity is a resource whose contents may or may not be text, and if text, may be other than XML. Each unparsed entity has an associated notation, identified by name. Beyond a requirement that an XML processor make the identifiers for the entity and notation available to the application, XML places no constraints on the contents of unparsed entities.
a container whose contents may or may not be text
a resource the contents of which may or may not be text, and if text, may be other than XML