Meaning of SGML in English

/ ˌes dʒiː em ˈel; NAmE / abbreviation

( computing ) Standard Generalized Mark-up Language (a system used for marking text on a computer so that the text can be read on a different computer system or displayed in different forms)

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.