We found 54 dictionaries that define the word decibel:

General (22 matching dictionaries)

1. decibel: Merriam-Webster
2. decibel: Oxford Learner's Dictionaries
3. decibel: American Heritage Dictionary of the English Language
4. decibel: Collins English Dictionary
5. decibel: Vocabulary.com
6. Decibel, decibel: Wordnik
7. decibel: Cambridge Advanced Learner's Dictionary
8. decibel: Wiktionary
9. decibel: Webster's New World College Dictionary, 4th Ed.
10. decibel: The Wordsmyth English Dictionary-Thesaurus
11. decibel: Infoplease Dictionary
12. decibel: Dictionary.com
13. decibel: Online Etymology Dictionary
14. decibel: Cambridge Essential American English Dictionary
15. Decibel (disambiguation), Decibel (magazine), Decibel: Wikipedia, the Free Encyclopedia
16. decibel: Rhymezone
17. decibel: FreeDictionary.org
18. decibel: Mnemonic Dictionary
19. decibel: TheFreeDictionary.com
20. decibel: Longman Dictionary of Contemporary English

Art (2 matching dictionaries)

21. Technical Glossary of Theatre Terms (No longer online)
22. Virginia Tech Multimedia Music Dictionary (No longer online)

Business (2 matching dictionaries)

23. Construction Term Glossary (No longer online)
24. BusinessDictionary.com (No longer online)

Computing (6 matching dictionaries)

25. decibel: CCI Computer
26. Decibel: Game Dictionary
27. decibel: Computer Telephony & Electronics Dictionary and Glossary
28. Webopedia (No longer online)
29. I T Glossary (No longer online)
30. Decibel (Acoustics), decibel: Encyclopedia

Medicine (6 matching dictionaries)

31. decibel: Merriam-Webster Medical Dictionary
32. Dorland's Illustrated Medical Dictionary (No longer online)
33. online medical dictionary (No longer online)
34. Health and Wellness Dictionary (No longer online)
35. Decibel (Acoustics), decibel: Medical dictionary
36. Hyperdictionary (No longer online)

Science (2 matching dictionaries)

37. Decibel: Extragalactic Astronomy
38. How Many? A Dictionary of Units of Measurement (No longer online)

Slang (1 matching dictionary)

39. decibel: Urban Dictionary

Tech (13 matching dictionaries)

40. decibel: Webster's New World Telecom Dictionary
41. decibel: Electronics
42. AUTOMOTIVE TERMS (No longer online)
43. Basics of Space Flight Glossary (No longer online)
44. Glossary of Meteorology (No longer online)
45. Explosives (No longer online)
46. DECIBEL: NOISE CONTROL TERMS
47. Schlumberger Oilfield Glossary (No longer online)
48. Decibel: Data Acquisition
49. Rane Professional Audio Reference (No longer online)
50. Space and Electronic Warfare Lexicon (No longer online)
51. Sweetwater Music (No longer online)
52. DECIBEL (dB): Power Engineering

(Note: See decibels as well.)

Definitions from Wiktionary ( ) ▸ noun:  A common measure of sound intensity ratio that is one tenth of a bel on the logarithmic intensity scale. It is defined as dB = ⅒log₁₀(P₁ / P₂), where P₁ and P₂ are the relative powers of the sound. Similar: DB, megadecibel, deciliter, kilobaud, decilitre, cubic decimeter, dots per inch, cubic decimetre, Bel & Dr., diopter, more... Opposite: neper Types: A-weighted decibel, C-weighted decibel, Z-weighted decibel, more... Phrases: decibel scale, decibel (db), perceived noise decibel, Decibel watt, db decibel, more... Adjectives: high, nearest, logarithmic, single, last, lower, additional, extra, top, certain, full ▸ Word origin ▸ Words similar to decibel ▸ Usage examples for decibel ▸ Idioms related to decibel ▸ Wikipedia articles (New!) ▸ Popular adjectives describing decibel ▸ Words that often appear near decibel ▸ Rhymes of decibel ▸ Invented words related to decibel