We found 27 dictionaries that define the word sniffer:

General (14 matching dictionaries)

1. sniffer: Merriam-Webster
2. sniffer: Oxford Learner's Dictionaries
3. sniffer: Collins English Dictionary
4. sniffer: Vocabulary.com
5. Sniffer, sniffer: Wordnik
6. sniffer: Cambridge Advanced Learner's Dictionary
7. sniffer: Wiktionary
8. sniffer: Infoplease Dictionary
9. sniffer: Dictionary.com
10. Sniffer, The Sniffer: Wikipedia, the Free Encyclopedia
11. sniffer: Rhymezone
12. sniffer: FreeDictionary.org
13. sniffer: Mnemonic Dictionary
14. sniffer: TheFreeDictionary.com

Computing (7 matching dictionaries)

15. sniffer: Free On-line Dictionary of Computing
16. sniffer: Netlingo
17. sniffer: CCI Computer
18. Sniffer: Linktionary Networking Glossary
19. Webopedia (No longer online)
20. sniffer: Hacking Lexicon
21. sniffer: Encyclopedia

Medicine (1 matching dictionary)

22. online medical dictionary (No longer online)

Miscellaneous (2 matching dictionaries)

23. SNIFFER: Acronym Finder
24. sniffer: Idioms

Slang (2 matching dictionaries)

25. sniffer: Green’s Dictionary of Slang
26. sniffer: Urban Dictionary

Tech (1 matching dictionary)

27. Space and Electronic Warfare Lexicon (No longer online)

(Note: See sniffers as well.)

Definitions from Wiktionary (sniffer) ▸ noun:  One who sniffs. ▸ noun:  (informal) The nose. ▸ noun:  (networking) A software or hardware tool for intercepting and logging network traffic. Similar: snatcher, suspector, snarer, smeller, sniper, scenter, searcher, sneaker, smuggler, spotter, more... Opposite: non-sniffer, anti-sniffer, scentless, odorless Phrases: packet sniffer, sniffer dogs, sniffer dog, sniffer program, glue sniffer, more... Adjectives: wireless, glue, based, good, simple, electronic, free, chronic, great, sensitive, ethereal ▸ Words similar to sniffer ▸ Usage examples for sniffer ▸ Idioms related to sniffer ▸ Wikipedia articles (New!) ▸ Popular adjectives describing sniffer ▸ Words that often appear near sniffer ▸ Rhymes of sniffer ▸ Invented words related to sniffer