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We found 26 dictionaries with English definitions that include the word jackhammer:
Click on the first link on a line below to go directly to a page where "jackhammer" is defined.

General (24 matching dictionaries)

1. jackhammer: Merriam-Webster.com [home, info]
2. jackhammer: Oxford Dictionaries [home, info]
3. jackhammer: American Heritage Dictionary of the English Language [home, info]
4. jackhammer: Collins English Dictionary [home, info]
5. jackhammer: Vocabulary.com [home, info]
6. Jackhammer, jackhammer: Wordnik [home, info]
7. jackhammer: Cambridge Advanced Learner's Dictionary [home, info]
8. jackhammer: Wiktionary [home, info]
9. jackhammer: Webster's New World College Dictionary, 4th Ed. [home, info]
10. jackhammer: The Wordsmyth English Dictionary-Thesaurus [home, info]
11. jackhammer: Infoplease Dictionary [home, info]
12. jackhammer: Dictionary.com [home, info]
13. jackhammer: UltraLingua English Dictionary [home, info]
14. jackhammer: Cambridge Dictionary of American English [home, info]
15. JackHammer, Jackhammer (Wrestling), Jackhammer (comics), Jackhammer (disambiguation), Jackhammer: Wikipedia, the Free Encyclopedia [home, info]
16. jackhammer: Rhymezone [home, info]
17. jackhammer: Stammtisch Beau Fleuve Acronyms [home, info]
18. jackhammer: Free Dictionary [home, info]
19. jackhammer: Mnemonic Dictionary [home, info]
20. jackhammer: WordNet 1.7 Vocabulary Helper [home, info]
21. jackhammer: LookWAYup Translating Dictionary/Thesaurus [home, info]
22. jackhammer: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

23. jackhammer: Encyclopedia [home, info]

Slang (1 matching dictionary)

24. the Jackhammer: Urban Dictionary [home, info]

(Note: See jackhammers for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (jackhammer) ▸ noun:  a hammer driven by compressed air ▸ Also see jackhammers ▸ Words similar to jackhammer ▸ Usage examples for jackhammer ▸ Popular adjectives describing jackhammer ▸ Words that often appear near jackhammer ▸ Rhymes of jackhammer ▸ Invented words related to jackhammer