underwire definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- a curved wire inserted into the undersides of the cups of certain bras for increased support
- such a brain full underwire bra
underwire definition by American Heritage Dictionary
- A semicircular wire support sewn into the underside of each cup of a brassiere.
- A brassiere with such a wire support.