SGML

customary language used for writing Internet hypertext files (based on separation of the form of a document from its contents)

The Standard Generalized Markup Language (SGML) is a metalanguage in which one can define markup languages for documents. SGML is a descendant of IBM's Generalized Markup Language (GML), developed in the 1960s by Charles Goldfarb, Edward Mosher and Raymond Lorie (whose surname initials were used by Goldfarb to make up the term GML). SGML and GML should not be confused with the Game Maker scripting language, or with the Geography Markup Language developed by the Open GIS Consortium.
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Noun
1. (computer science) a standardized language for the descriptive markup of documents; a set of rules for using whatever markup vocabulary is adopted
(synonym) standard generalized markup language
(hypernym) markup language
(classification) computer science, computing

Abbreviation for Standard Generalized Mark-up Language. A file format for storage of text and graphics files.

Standard Generalized Markup Language