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English definition of “cavity wall”

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cavity wall

noun [C] uk   us  
a wall of a building formed from two walls with a space, usually for air, between them. It is made in this way to keep out water and cold air.
Translations of “cavity wall”
in Chinese (Traditional) (防濕防寒的)空心牆,夾壁牆…
in Chinese (Simplified) (防湿防寒的)空心墙,夹层墙…
(Definition of cavity wall from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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