character data entity
Technical computing term used in markup languages such as SGML and XML to define a named entity that represents a character by its code point or a string.
In XML, you can represent special characters using character data entities.
文字参照 is a broader term for character references, including numeric character references, while 文字データ実体 specifically refers to named character entities declared in a DTD.
specific character data entity
Compound of 文字 (character), データ (data), and 実体 (entity), likely a direct translation of the English computing term 'character data entity'.