n., pl., -tos.
A tremulous or pulsating effect produced in an instrumental or vocal tone by minute and rapid variations in pitch.
[Italian, from Late Latin vibrātus, a quivering, from Latin, past participle of vibrāre, to vibrate. See vibrate.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
