We found 26 dictionaries that define the word spontaneous combustion:

General (21 matching dictionaries)

1. spontaneous combustion: Longman Dictionary of Contemporary English
2. spontaneous combustion: Merriam-Webster
3. spontaneous combustion: Oxford Learner's Dictionaries
4. spontaneous combustion: American Heritage Dictionary of the English Language
5. spontaneous combustion: Collins English Dictionary
6. spontaneous combustion: Vocabulary.com
7. spontaneous combustion: Wordnik
8. spontaneous combustion: Cambridge Advanced Learner's Dictionary
9. spontaneous combustion: Wiktionary
10. spontaneous combustion: The Wordsmyth English Dictionary-Thesaurus
11. spontaneous combustion: Infoplease Dictionary
12. spontaneous combustion: Dictionary.com
13. Spontaneous Combustion (South Park), Spontaneous Combustion (album), Spontaneous Combustion (film), Spontaneous combustion (disambiguation), Spontaneous combustion: Wikipedia, the Free Encyclopedia
14. spontaneous combustion: Rhymezone
15. Spontaneous Combustion: E Cobham Brewer, The Reader's Handbook
16. Spontaneous Combustion: Dictionary of Phrase and Fable (1898)
17. spontaneous combustion: FreeDictionary.org
18. spontaneous combustion: Mnemonic Dictionary
19. spontaneous combustion: TheFreeDictionary.com

Computing (1 matching dictionary)

20. Spontaneous combustion (combustion), spontaneous combustion: Encyclopedia

Medicine (2 matching dictionaries)

21. Medical Dictionary (No longer online)
22. online medical dictionary (No longer online)

Science (1 matching dictionary)

23. Spontaneous Combustion: Material Safety Data Sheets HyperGlossary

Slang (1 matching dictionary)

24. spontaneous combustion: Urban Dictionary

(Note: See spontaneous_combustions as well.)

Definitions from Wiktionary (spontaneous combustion) ▸ noun:  Combustion without an external source of heat. Similar: noncombustion, flamelessness, blind coal, aspontaneity, ashlessness, sparklessness, unpremeditation, firelessness, accidentalism, smokelessness, more... Opposite: extinguishment, quenching, suppression Phrases: Spontaneous human combustion, more... Adjectives: scaleless, shadowless, reflectionless, ungreen, akinetic, creaseless, cloudless, pastless, guardless, ireless, blasted ▸ Words similar to spontaneous combustion ▸ Usage examples for spontaneous combustion ▸ Idioms related to spontaneous combustion ▸ Wikipedia articles (New!) ▸ Words that often appear near spontaneous combustion ▸ Rhymes of spontaneous combustion ▸ Invented words related to spontaneous combustion