A subset of the US government's Standardized General Markup Language (SGML) , HTML is the underlying base of the World Wide Web (WWW) . Even though SGML has a static definition, HTML is expandable because SGML defines a process for extending its subsets of tags. Defined in RFC 1866 .
HYPERTEXT MARKUP LANGUAGE (HTML)
Meaning of HYPERTEXT MARKUP LANGUAGE (HTML) in English
Josh's Network English Glossary. Английский словарь Josh's Network. 2012