We found 30 dictionaries that define the word lie detector:

General (19 matching dictionaries)

1. lie detector: Longman Dictionary of Contemporary English
2. lie detector: Merriam-Webster
3. lie detector: Oxford Learner's Dictionaries
4. lie detector: American Heritage Dictionary of the English Language
5. lie detector: Collins English Dictionary
6. lie detector: Vocabulary.com
7. lie-detector: Wordnik
8. lie detector: Cambridge Advanced Learner's Dictionary
9. lie detector: Wiktionary
10. lie detector: The Wordsmyth English Dictionary-Thesaurus
11. lie detector: Infoplease Dictionary
12. lie detector: Dictionary.com
13. Lie Detector (TV series), Lie Detector (disambiguation), Lie-detector, Lie detector: Wikipedia, the Free Encyclopedia
14. lie detector: Rhymezone
15. lie detector: FreeDictionary.org
16. lie detector: Mnemonic Dictionary
17. Lie-detector, lie detector: TheFreeDictionary.com

Business (4 matching dictionaries)

18. lie detector: Merriam-Webster Legal Dictionary
19. THE 'LECTRIC LAW LIBRARY'S REFERENCE ROOM (No longer online)
20. Glossary of Legal Terms (No longer online)
21. Lie-detector, lie detector: Legal dictionary

Computing (1 matching dictionary)

22. Lie-detector, lie detector: Encyclopedia

Medicine (3 matching dictionaries)

23. lie detector: Merriam-Webster Medical Dictionary
24. online medical dictionary (No longer online)
25. Lie-detector, lie detector: Medical dictionary

Miscellaneous (1 matching dictionary)

26. lie detector: The Skeptic's Dictionary

Slang (1 matching dictionary)

27. lie detector: Urban Dictionary

Tech (1 matching dictionary)

28. lie detector: Electronics

(Note: See lie_detectors as well.)

Definitions from Wiktionary (lie detector) ▸ noun:  (informal) A device designed to detect or indicate when a person is lying by measuring and recording several physiological variables. Similar: detector, electron capture detector, Det., detectivity, drug dog, autodetector, decelerometer, detection dog, orthodiagraph, window detector, more... Opposite: truth detector, veracity tester, honesty verifier Types: polygraph, thermography, eye-tracking, more... Phrases: lie detector test, more... Adjectives: manual, aneroid, spirometric, a, sg, sphygmomanometric, transdermal, keratometric, submeter, rheometric, dilatometric ▸ Words similar to lie detector ▸ Usage examples for lie detector ▸ Idioms related to lie detector ▸ Wikipedia articles (New!) ▸ Words that often appear near lie detector ▸ Rhymes of lie detector ▸ Invented words related to lie detector