upsilon
the 20th letter of the Greek alphabet (Υ, υ).
the vowel sound represented by this letter.
Also called upsilon particle. Physics. any of a family of heavy, short-lived, neutral mesons that are composed of a bottom quark and its antiquark. Symbol: Υ, υ
Origin of upsilon
1Words Nearby upsilon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use upsilon in a sentence
The fraternities involved in the alleged drug sales were Alpha Epsilon Pi, Pi Kappa Alpha and Psi upsilon.
The little son of the queen, Prince upsilon, was peevish over this and was continually calling for more playthings.
Walter Pieterse | MultatuliIt sounds well to be a Kappa upsilon and we can go around if we like and be as snooty as any of them.
Betty Lee, Sophomore | David Goodger (goodger@python.org)A bone of the tongue resembling the Greek letter upsilon in shape.
A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) | Calvin CutterThis species is the ypsilon of Borkhausen, and the upsilon of other authors.
The Moths of the British Isles, Second Series | Richard South
She issued an order, therefore, that for a certain time upsilon was to have no playthings.
Walter Pieterse | Multatuli
British Dictionary definitions for upsilon
/ (ˈʌpsɪˌlɒn, juːpˈsaɪlən) /
the 20th letter in the Greek alphabet (Υ, υ), a vowel, transliterated as y or u
Origin of upsilon
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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