noun
1.
[ C ] ( BrE , informal ) a lump of coal
2.
[ U , C ] a dark form of diamond
3.
[ C ] ( NAmE ) a slope that is difficult to ski down :
a black diamond run
noun
1.
[ C ] ( BrE , informal ) a lump of coal
2.
[ U , C ] a dark form of diamond
3.
[ C ] ( NAmE ) a slope that is difficult to ski down :
a black diamond run
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005