We found 62 dictionaries that define the word standard deviation:

General (17 matching dictionaries)

1. standard deviation: Longman Dictionary of Contemporary English
2. standard deviation: Merriam-Webster
3. standard deviation: Oxford Learner's Dictionaries
4. standard deviation: American Heritage Dictionary of the English Language
5. standard deviation: Collins English Dictionary
6. standard deviation: Vocabulary.com
7. standard deviation: Wiktionary
8. standard deviation: The Wordsmyth English Dictionary-Thesaurus
9. standard deviation: Infoplease Dictionary
10. standard deviation: Dictionary.com
11. Standard Deviation (Masters of Sex), Standard Deviation, Standard deviation (disambiguation), Standard deviation: Wikipedia, the Free Encyclopedia
12. standard deviation: Rhymezone
13. standard deviation: FreeDictionary.org
14. standard deviation: Mnemonic Dictionary
15. standard deviation: TheFreeDictionary.com

Art (1 matching dictionary)

16. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Business (16 matching dictionaries)

17. MoneyGlossary.com (No longer online)
18. INVESTORWORDS (No longer online)
19. Standard Deviation: bizterms.net
20. Standard deviation: Bloomberg Financial Glossary
21. Standard deviation: Harvey Financial
22. Standard deviation: Moneyterms
23. Standard deviation: Deardorff's Glossary of International Economics
24. Standard Deviation: Futures and Options Market Terminology
25. Standard Deviation: Investopedia
26. Comprehensive Financial (No longer online)
27. standard deviation: Legal dictionary
28. Standard Deviation: Financial dictionary
29. Accounting, Business Studies and Economics Dictionary (No longer online)
30. BusinessDictionary.com (No longer online)
31. Standard deviation: WashingtonPost.com: Business
32. Yahoo Tax Center Glossary (No longer online)

Computing (2 matching dictionaries)

33. standard deviation: Free On-line Dictionary of Computing
34. standard deviation: Encyclopedia

Medicine (4 matching dictionaries)

35. Dorland's Illustrated Medical Dictionary (No longer online)
36. online medical dictionary (No longer online)
37. Glossary of HIV/AIDS Related Terms (No longer online)
38. standard deviation: Medical dictionary

Miscellaneous (1 matching dictionary)

39. A Brief Critical Dictionary of Education (No longer online)

Science (14 matching dictionaries)

40. Archaeology Wordsmith (No longer online)
41. Bird On! (No longer online)
42. Earthquake Image Glossary (No longer online)
43. Standard Deviation: Eric Weisstein's World of Mathematics
44. Standard Deviation: Internet Glossary of Statistical Terms
45. standard deviation: MATH SPOKEN HERE!
46. The Computational Beauty of Nature (No longer online)
47. Standard Deviation: Extragalactic Astronomy
48. General Chemistry Online (No longer online)
49. standard deviation: PlanetMath Encyclopedia
50. Anthropology dictionary (No longer online)
51. Statistics (No longer online)
52. How Many? A Dictionary of Units of Measurement (No longer online)
53. Standard deviation: Fundamental Statistics for the Behavioral Sciences

Slang (1 matching dictionary)

54. standard deviation: Urban Dictionary

Sports (2 matching dictionaries)

55. Standard Deviation: Backgammon
56. Texas Hold'em Dictionary (No longer online)

Tech (4 matching dictionaries)

57. Dairy Glossary (No longer online)
58. Glossary of Meteorology (No longer online)
59. Explosives (No longer online)
60. Lake and Water Word Glossary (No longer online)

(Note: See standard_deviations as well.)

Definitions from Wiktionary (standard deviation) ▸ noun:  (statistics) A measure of how spread out data values are around the mean, defined as the square root of the variance. Represented with the Greek letter σ (sigma). Similar: standard error, variance, velocity dispersion, skewness, stress, svedberg, vanna, standing stock, sp. gr., dispersion, more... Opposite: mean, average, norm Phrases: population standard deviation, Unbiased estimation of standard deviation, Geometric standard deviation, standard of deviation, standard deviation symbol, more... Adjectives: std, gaussian, statistic, power, stiff, minimum, statistically significant, posterior, robust, credal, mesokurtic ▸ Words similar to standard deviation ▸ Usage examples for standard deviation ▸ Idioms related to standard deviation ▸ Wikipedia articles (New!) ▸ Words that often appear near standard deviation ▸ Rhymes of standard deviation ▸ Invented words related to standard deviation