Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Jazz a slightly flatted note, esp. the third or seventh note of a major scale
Used by arrangement with John Wiley & Sons, Inc.
noun MusicThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A flatted note, especially the third or seventh note of a scale, in place of an expected major interval.
Origin: From its use in blues music.