Upsilon
Upsilon Up"si*lon, n. [Gr. 'y^ psilo`n bare, mere, simple y.] The 20th letter ([Upsilon], [upsilon]) of the Greek alphabet, a vowel having originally the sound of [=oo] as in room, becoming before the 4th century b. c. that French u or Ger. ["u]. Its equivalent in English is u or y. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • upsilon — [ ypsilɔn ] n. m. • 1872; gr. u psilon « u mince » ♦ Vingtième lettre de l alphabet grec (υ). ● upsilon nom masculin (grec u psilon, u simple) Vingtième lettre de l alphabet grec (Υ, υ). [Il est transcrit y dans les mots empruntés au grec :… …   Encyclopédie Universelle

  • Upsilon — (uppercase Upsilon;, lowercase upsilon;; el. Ύψιλον) 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. In early Greek it was pronounced like English oo, IPA2|u …   Wikipedia

  • upsilon — 20th letter of the Greek alphabet, 1640s, from Gk. u psilon, lit. a mere (or bare) u; so called in contradistinction to the diphthongs oi , ei , which are pronounced exactly like upsilon …   Etymology dictionary

  • úpsilon — s. m. Ver ípsilo. • [Brasil] Plural: upsílones ou úpsilons. • [Portugal] Plural: upsílones …   Dicionário da Língua Portuguesa

  • upsilon — ► NOUN ▪ the twentieth letter of the Greek alphabet (Y, u), transliterated as ‘u’ or (chiefly in English words derived through Latin) as ‘y’. ORIGIN Greek, slender U …   English terms dictionary

  • upsilon — [o͞op′sə län΄, up′sə län΄] n. [LGr y psilon, lit., simple u (to distinguish from oi, of the same sound in LGr)] 1. the twentieth letter of the Greek alphabet (Y, υ) ☆ 2. any of a group of short lived elementary particles having a mass about ten… …   English World dictionary

  • Upsilon —  Ne doit pas être confondu avec Ʊ. Upsilon Graphies Capitale …   Wikipédia en Français

  • upsilon — /yoohp seuh lon , leuhn, up /; esp. Brit. /yoohp suy leuhn/, n. 1. the 20th letter of the Greek alphabet (Y). 2. the vowel sound represented by this letter. 3. Also called upsilon particle, Physics. any of a family of heavy, short lived, neutral… …   Universalium

  • upsilon — [ʌp sʌɪlən, ju:p , ʊpsɪlɒn, ju:p ] noun the twentieth letter of the Greek alphabet (Υ, υ), transliterated as ‘u’ or (chiefly in English words derived through Latin) as ‘y’. Origin Gk, lit. slender U , from psilos slender , referring to the need… …   English new terms dictionary

  • upsilon — noun Etymology: Middle Greek y psilon, literally, simple y; from the desire to distinguish it from oi, which was pronounced the same in later Greek Date: 1621 1. the 20th letter of the Greek alphabet see alphabet table 2. any of a group of… …   New Collegiate Dictionary

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