noun.
A bell worn by cows; sometimes with an ornate strap.
noun.
A musical instrument, typically found without a clapper.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a bell hung around the neck of cow so that the cow can be easily located
Word Usage
"A failure to enact health-care reform would be one thing, but the people simply will not stand for it if a promised increase in cowbell goes unrealized."