noun
[ usually pl. ] a dark cloud that you see when bad weather is coming :
( figurative )
The storm clouds of revolution were gathering.
noun
[ usually pl. ] a dark cloud that you see when bad weather is coming :
( figurative )
The storm clouds of revolution were gathering.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005