Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: ComputersVDTVDT /ˌviː diː ˈtiː/ noun [countable] American English technical (video display terminal) a computer screen SYN monitorFrom Longman Business DictionaryVDTVDT noun [countable]COMPUTING visual/video display terminal; another name for VDU ldoceonline.com