/ ˌstrætəʊˈkjuːmjələs; NAmE ˌstreɪtoʊ-; ˌstrætoʊ-/ noun
[ U ] ( technical ) a type of cloud which forms a thick grey layer low down in the sky
/ ˌstrætəʊˈkjuːmjələs; NAmE ˌstreɪtoʊ-; ˌstrætoʊ-/ noun
[ U ] ( technical ) a type of cloud which forms a thick grey layer low down in the sky
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005