From Longman Dictionary of Contemporary EnglishHTMLHTML /ˌeɪtʃ tiː em ˈel/ noun [uncountable] technical (hypertext markup language) a computer language used for producing pages of writing and pictures that can be put on the Internet HTML documentsFrom Longman Business DictionaryHTMLHTML noun [uncountable]COMPUTING Hypertext Markup Language; a computer language for creating documents on the WORLD WIDE WEB, using a system of codes to design the document and create LINKs to other documentsYou can convert Quark documents into HTML.an HTML document → compare SGML, XML