markup language noun Digital Technology. a set of standards, as HTML or SGML, used to create an appropriate markup scheme for an electronic document, as to indicate its structure or format. Liberaldictionary.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 markup language in Science markup language [märk′ŭp′] A coding system, such as HTML and SGML, used to structure, index, and link computer files. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.