OHT


Meaning of OHT in English

/ ˌəʊ eɪtʃ ˈtiː; NAmE ˌoʊ eɪtʃ ˈtiː/ noun

the abbreviation for 'overhead transparency' (a transparent plastic sheet that you can write or print sth on and show on a screen using an overhead projector )

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