We found 7 dictionaries that define the word cavity walls:

General (6 matching dictionaries)

1. cavity walls: Merriam-Webster
2. cavity walls: Collins English Dictionary
3. cavity walls: Vocabulary.com
4. cavity walls: Cambridge Advanced Learner's Dictionary
5. cavity walls: Wiktionary
6. cavity walls: TheFreeDictionary.com

Computing (1 matching dictionary)

7. cavity walls: Encyclopedia

(Note: See cavity_wall as well.)

Definitions from Wiktionary (cavity wall) ▸ noun:  (construction) A double wall of masonry connected by an air space. ▸ Also see cavity_wall ▸ Words similar to cavity walls ▸ Usage examples for cavity walls ▸ Idioms related to cavity walls ▸ Wikipedia articles (New!) ▸ Words that often appear near cavity walls ▸ Rhymes of cavity walls ▸ Invented words related to cavity walls