a window that opens on hinges like a door 平开窗;竖铰链窗;门式窗 Topics Buildingsc2Oxford Collocations DictionaryCasement is used before these nouns:- window
Word Originlate Middle English (as an architectural term denoting a hollow moulding): from Anglo-Latin cassimentum, from cassa, from Latin capsa, related to capere ‘to hold’.