eXtensible Markup Language: a simplified version of SGML that can be used, especially on the World Wide Web, to create a tagging scheme that allows elements of a document to be marked according to their content rather than their format.
Origin
1995-2000
British Dictionary definitions for XML
XML
abbreviation
1.
extensible markup language: a computer language used in text formatting
XML in Science
XML
(ěks'ěm-ěl') Short for extensible markup language. A version of SGML that allows one to design a customized markup language, used to allow for the easy interchange of documents and data on the World Wide Web or between software components.