- Abbreviation of Extensible Markup Language. A specification for the format of documents and data to be used on the Web. It is a scaled-down version of SGML, and seeks to retain the comparative simplicity of HTML, yet offer greater flexibility in areas such as organization and presentation, while being fully compatible with both. Also called XML format.
Information & Library Science
- noun a programming language designed for web documents which allows for the creation of customised tags for individual information fields.