A woman using an earplug.Licensed from iStockPhoto
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a plug inserted in the outer ear, as to deaden excessive noise or keep out water when swimming
Used by arrangement with John Wiley & Sons, Inc.
The 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.
- An object made of a soft, pliable material, such as cotton or rubber, and fitted into the ear canal to block the entry of water or sound.
- An earphone, especially one that fits into the ear.