Definitions for upsilonˈyup səˌlɒn, -lən, ˈʌp-; esp. Brit. yupˈsaɪ lən

This page provides all possible meanings and translations of the word upsilon

Random House Webster's College Dictionary

up•si•lonˈyup səˌlɒn, -lən, ˈʌp-; esp. Brit. yupˈsaɪ lən(n.)

  1. the 20th letter of the Greek alphabet (Y, υ).

    Category: Language/Linguistics

  2. Also called up′silon par`ticle. any of a family of heavy, short-lived, neutral mesons that are composed of a bottom quark and its antiquark. Symbol:Y, υ

    Category: Physics

Origin of upsilon:

1615–25; < LGk ŷ psīlón lit., simple u (to distinguish it from the diagraph oi, pronounced the same in LGk

Princeton's WordNet

  1. upsilon(noun)

    the 20th letter of the Greek alphabet


  1. upsilon(Noun)

    The twentieth letter of the Classical and Modern Greek, the twenty-first letter of Old and Ancient.


  1. Upsilon

    Upsilon is the 20th letter of the Greek alphabet. In the system of Greek numerals it has a value of 400. It is derived from the Phoenician waw . The name of the letter is pronounced in Modern Greek, and in English, yewp-SY-lən, or YEWP-sə-lon. It is occasionally called "ypsilon" in English after its rendering in Latin, where the Greek upsilon corresponded with the letter Y.

Anagrams of upsilon

  1. unspoil


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