We found 16 dictionaries that define the word brain teaser:

General (14 matching dictionaries)

1. brain-teaser: Oxford Learner's Dictionaries
2. brain-teaser, brain-teaser: Collins English Dictionary
3. brain-teaser: Vocabulary.com
4. brain-teaser: Wordnik
5. brain-teaser: Wiktionary
6. brain-teaser: Dictionary.com
7. Brain teaser: Wikipedia, the Free Encyclopedia
8. brain-teaser: Rhymezone
9. brain-teaser: FreeDictionary.org
10. brain-teaser: Mnemonic Dictionary
11. brain-teaser: TheFreeDictionary.com
12. brain teaser: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

13. brain-teaser: Encyclopedia

Slang (1 matching dictionary)

14. brain teaser: Urban Dictionary

Definitions from Wikipedia (Brain teaser) ▸ noun:  A brain teaser is a form of puzzle that requires thought to solve. Phrases: brain teaser of little importance, more... ▸ Words similar to brain teaser ▸ Usage examples for brain teaser ▸ Idioms related to brain teaser ▸ Wikipedia articles (New!) ▸ Words that often appear near brain teaser ▸ Rhymes of brain teaser ▸ Invented words related to brain teaser