We found 25 dictionaries that define the word a-bomb:

General (19 matching dictionaries)

1. A-bomb: Merriam-Webster
2. A-bomb: Oxford Learner's Dictionaries
3. A-bomb: American Heritage Dictionary of the English Language
4. A-bomb, A-bomb: Collins English Dictionary
5. A-bomb: Vocabulary.com
6. A-Bomb, A-bomb, a-bomb: Wordnik
7. A-bomb: Wiktionary
8. A-bomb: Webster's New World College Dictionary, 4th Ed.
9. A-bomb: The Wordsmyth English Dictionary-Thesaurus
10. A-bomb: Dictionary.com
11. A-Bomb, A-bomb: Wikipedia, the Free Encyclopedia
12. A-bomb: Rhymezone
13. a-bomb: FreeDictionary.org
14. a-bomb: Mnemonic Dictionary
15. A-bomb: TheFreeDictionary.com
16. A-bomb: Wikimedia Commons US English Pronunciations
17. A-bomb: Merriam-Webster

Computing (1 matching dictionary)

18. A-bomb: Encyclopedia

Miscellaneous (1 matching dictionary)

19. A-BOMB: Acronym Finder

Science (1 matching dictionary)

20. A-Bomb: Eric Weisstein's World of Physics

Slang (3 matching dictionaries)

21. A-bomb: Green’s Dictionary of Slang
22. A-bomb: Street Terms: Drugs and the Drug Trade
23. A-Bomb: Urban Dictionary

(Note: See a-bombs as well.)

Definitions from WordNet (A-bomb) ▸ noun:  a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239) Similar: fission bomb, atomic bomb, atom bomb, plutonium bomb, A-bomber, nuclear bomb, atomic weapon, the bomb, bomb, U-bomb, more... Opposite: peace, nonviolence, disarmament Types: fission, fusion, neutron, more... ▸ Words similar to a-bomb ▸ Usage examples for a-bomb ▸ Idioms related to a-bomb ▸ Wikipedia articles (New!) ▸ Popular adjectives describing a-bomb ▸ Words that often appear near a-bomb ▸ Rhymes of a-bomb ▸ Invented words related to a-bomb