Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: upside-down
Next word: upspring
Definition of: upsilon
(y
p′sə·lon, Brit. yp·sī′lən) noun
The twentieth letter and sixth vowel in the Greek alphabet (Υ, υ): having the sound of French u, Latin and Old English y. It is transliterated in English as u or y. See Y. [<Gk. ypsilon smooth y]
Comment about this word, ask questions, or add new information about this topic: