We found 26 dictionaries that define the word science fiction:

General (21 matching dictionaries)

1. science fiction: Longman Dictionary of Contemporary English
2. science fiction: Merriam-Webster
3. science fiction: Oxford Learner's Dictionaries
4. science fiction: American Heritage Dictionary of the English Language
5. science fiction: Collins English Dictionary
6. science fiction: Vocabulary.com
7. Science-Fiction, Science-fiction, science-fiction, science fiction: Wordnik
8. science fiction: Cambridge Advanced Learner's Dictionary
9. science-fiction, science fiction: Wiktionary
10. science fiction: The Wordsmyth English Dictionary-Thesaurus
11. science fiction: Infoplease Dictionary
12. science-fiction, science fiction: Dictionary.com
13. science fiction: Online Etymology Dictionary
14. Science Fiction (Alice Cooper album), Science Fiction (Blackmail album), Science Fiction (Brand New album), Science Fiction (Jonathan Thulin album), Science Fiction (Ornette Coleman album), Science Fiction (Tom Bailey album), Science Fiction (song), Science Fiction, Science-fiction, Science fiction (disambiguation), Science fiction: Wikipedia, the Free Encyclopedia
15. science fiction: Rhymezone
16. Science-fiction (f), science-fiction (f), science fiction, science fiction (de): AllWords.com Multi-Lingual Dictionary
17. science fiction: FreeDictionary.org
18. science fiction: Mnemonic Dictionary
19. science-fiction, science fiction: TheFreeDictionary.com

Art (2 matching dictionaries)

20. Movie Terminology Glossary (No longer online)
21. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Computing (1 matching dictionary)

22. science-fiction, science fiction: Encyclopedia

Medicine (1 matching dictionary)

23. science fiction: Medical dictionary

Slang (1 matching dictionary)

24. science fiction: Urban Dictionary

(Note: See science_fictions as well.)

Definitions from Wiktionary (science fiction) ▸ noun:  Fiction in which advanced technology or science is a key element. ▸ noun:  (by extension) Technology that, while theoretically possible, is not yet practical. Similar: hard science fiction, soft science fiction, science fantasy, proto-science fiction, scientifiction, science fact, scientific romance, pseudoscience, xenoscience, space technology, more... Opposite: realistic fiction, non-fiction, historical fiction Types: cyberpunk, space opera, dystopian, post-apocalyptic, alternate history, steampunk, more... Phrases: Analog Science Fiction and Fact, hard science fiction, Science fiction fandom, soft science fiction, Science fiction film, more... Adjectives: sf, sentient, science fictional, techie, banausic, crossover, technoid, basilisk, automatist, hologrammatic, hi-tech ▸ Word origin ▸ Words similar to science fiction ▸ Usage examples for science fiction ▸ Idioms related to science fiction ▸ Wikipedia articles (New!) ▸ Words that often appear near science fiction ▸ Rhymes of science fiction ▸ Invented words related to science fiction