
1) Alphabetic character 2) Greek letter 3) Greek vowel 4) Greek letter 5) Greek letter after tau 6) Greek letter number 20 7) Greek letter before phi 8) Letter 9) Letter after tau 10) Letter before phi 11) Letter of the alphabet 12) Tau follower
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https://www.crosswordclues.com/clue/upsilon

Upsilon (uppercase Υ, lowercase υ; Ύψιλον, Úpsilon) 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 ˈipsilon in Modern Greek, and in English n, ən {respell|yewp|SY|lən}, or n {respell|YEWP|sə-lon}. It is occasi...
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http://en.wikipedia.org/wiki/Upsilon

• (n.) The 20th letter (/, /) of the Greek alphabet, a vowel having originally the sound of / as in room, becoming before the 4th century b. c. that French u or Ger. u. Its equivalent in English is u or y.
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http://thinkexist.com/dictionary/meaning/upsilon/

20th Letter in the Greek alphabet. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973

Type: Term Pronunciation: up′si-lon Definitions: 1. The 20th letter of the Greek alphabet, Ψ.
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http://www.medilexicon.com/medicaldictionary.php?t=95803

adverb One of the two directions pointing out of realmspace into tetraspace; movement in the positive w direction. In tetraspace, represented by the vector <0,0,0,1>. This term refers to the direction analogous to up; the 'u' in 'upsilon' corresponds to the 'u' in 'up'. In some literature, this direction is referred to as kata. This term is the sam...
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http://www.translationdirectory.com/glossaries/glossary141.htm

[
n] - the 20th letter of the Greek alphabet
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http://www.webdictionary.co.uk/definition.php?query=upsilon

upsilon 1. The 20th letter of the Greek alphabet, represented in the English alphabet as 'y' or 'u'. 2. In physics, any of several ephemeral particles whose mass is ten times that of a proton. This letter has the sound of French u, Latin and Old English y; and it is transliterated in English as u or y.
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http://www.wordinfo.info/words/index/info/view_unit/2233/
noun the 20th letter of the Greek alphabet
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https://www.encyclo.co.uk/local/20974

the 20th letter of the Greek alphabet (&Ugr;, &ugr;). · the vowel sound represented by this letter. · Also calledany of a family of heavy, short-lived, neutral mesons that are composed of a bottom quark and its antiquark. Symbol: &Ugr;, &ugr;
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https://www.infoplease.com/dictionary/upsilon
No exact match found.