The small round ball attached to this bell is the clapper.
clapper 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 person who claps
- the moving part inside a bell, that strikes the side of the bell; tongue
- the tongue of a garrulous person: used facetiously
clapper definition by American Heritage Dictionary
- One who applauds.
- The tongue of a bell.
- Slang The tongue of a garrulous person.
- clappers Two flat pieces of wood held between the fingers and struck together rhythmically.