We found 15 dictionaries that define the word extension ladder:

General (12 matching dictionaries)

1. extension ladder: Merriam-Webster
2. extension ladder: Oxford Learner's Dictionaries
3. extension ladder: Collins English Dictionary
4. extension ladder: Vocabulary.com
5. extension-ladder: Wordnik
6. extension ladder: Infoplease Dictionary
7. extension ladder: Dictionary.com
8. Extension ladder: Wikipedia, the Free Encyclopedia
9. extension ladder: Rhymezone
10. extension ladder: FreeDictionary.org
11. extension ladder: Mnemonic Dictionary
12. extension ladder: TheFreeDictionary.com

Business (2 matching dictionaries)

13. Travel Industry Dictionary (No longer online)
14. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

15. extension ladder: Encyclopedia

(Note: See extension_ladders as well.)

Definitions from WordNet (extension ladder) ▸ noun:  a ladder whose length can be extended Opposite: step ladder, folding ladder, A-frame ladder Types: A-frame ladder, step ladder, straight ladder, telescoping ladder, trestle ladder, twin ladder, more... ▸ Words similar to extension ladder ▸ Usage examples for extension ladder ▸ Idioms related to extension ladder ▸ Wikipedia articles (New!) ▸ Words that often appear near extension ladder ▸ Rhymes of extension ladder ▸ Invented words related to extension ladder