Pronunciation: ˈrəʊt(ə)ri wɪŋ
Parts of Speech: noun
the long airfoil that rotates to provide the lift that supports a helicopter in the air
Definition: Meaning of, spiral staircase in English to Russian dictionary.
Pronunciation: / ˈspʌɪr(ə)l ˈstɛːkeɪs /
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| [countable] |