Definition of UPSILON (Meaning of UPSILON), a 7 Letter Word

Pronunciation:		'yoopsu`lân


WordNet Dictionary

	Definition:	[n] the 20th letter of the Greek alphabet

UPSILON is a 7 letter word that starts with U.
	See Also:	alphabetic character, Greek alphabet, letter, letter of the alphabet

Webster's 1913 Dictionary

	Definition:	\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.