noun
[ U ] a size of railway / railroad track that is not as wide as the standard track that is used in Britain and the US :
a narrow-gauge railway
noun
[ U ] a size of railway / railroad track that is not as wide as the standard track that is used in Britain and the US :
a narrow-gauge railway
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005