cavity wall

American

noun

Masonry.

a wall built with an enclosed inner space to prevent penetration by water.

cavity wall British

noun

a wall that consists of two separate walls, joined by wall-ties, with an airspace between them

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of cavity wall

First recorded in 1905–10

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

cavity wall

FirstPort says the problem was caused by faulty cavity wall insulation installed by British Gas 11 years ago.

From BBC ● Nov. 3, 2025

Millions of pounds were spent by local authorities "retrofitting" older homes with cavity wall insulation.

From BBC ● May 10, 2023

The problem was believed to have happened after workers who replaced the fans damaged the cavity wall, causing the common insulation material to leak out.

From BBC ● Nov. 17, 2022

In a typical three-bedroomed semi-detached house in Great Britain, the Energy Savings Trust estimates that installing draught proofing measures plus cavity wall and loft insulation could save £555 on an average annual energy bill.

From BBC ● Oct. 7, 2022

The lateral portions of the ethmoid bone are located between the orbit and upper nasal cavity, and thus form the lateral nasal cavity wall and a portion of the medial orbit wall.

From Textbooks ● Jun. 19, 2013

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023