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“ypsilon”
upsilon, ypsilon (smooth y)
1. The 20th letter and sixth vowel of the Greek alphabet (Υ, υ), represented in the English alphabet as "y" or "u"; having the sound of French u, Latin and Old English y.
2. In physics, any of several ephemeral particles whose mass is ten times that of a proton.
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.
This entry is located in the following unit:
upsilon; Υ, υ +
(page 1)
A unit related to:
“ypsilon”
(Greek: denoting u-shaped [upsilon-shaped]; hyoid bone, literally, "mere" or "simple" y, ypsilon)