noun
( disapproving ) a custom, system, etc. that has existed for a long time and that many people think should not be questioned or criticized
noun
( disapproving ) a custom, system, etc. that has existed for a long time and that many people think should not be questioned or criticized
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005