Usually means: Greek letter resembling Latin "Y".
Definitions Related words Phrases Mentions History
We found 20 dictionaries that define the word upsilon:

General (17 matching dictionaries)
  1. upsilon: Merriam-Webster
  2. Upsilon, upsilon: Oxford Learner's Dictionaries
  3. upsilon: American Heritage Dictionary of the English Language
  4. upsilon: Collins English Dictionary
  5. upsilon: Vocabulary.com
  6. Upsilon, upsilon: Wordnik
  7. upsilon: Wiktionary
  8. upsilon: Webster's New World College Dictionary, 4th Ed.
  9. upsilon: The Wordsmyth English Dictionary-Thesaurus
  10. upsilon: Infoplease Dictionary
  11. upsilon: Dictionary.com
  12. upsilon: Online Etymology Dictionary
  13. Upsilon (disambiguation), Upsilon: Wikipedia, the Free Encyclopedia
  14. upsilon: Rhymezone
  15. upsilon: FreeDictionary.org
  16. upsilon: Mnemonic Dictionary
  17. upsilon: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. upsilon: Encyclopedia

Medicine (2 matching dictionaries)
  1. online medical dictionary (No longer online)
  2. Upsilon (letter), upsilon: Medical dictionary

(Note: See upsilons as well.)

Definitions from Wiktionary (upsilon)

noun:  The twentieth letter of Classical and Modern Greek; the twenty-second letter of Old and Ancient Greek.
noun:  (physics) An upsilon meson, or bottomonium.

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