What Is Democracy?

Yaron Brook has written a letter to the editor (found on Noodlefood) which begins:

"President Bush has staked America's security on his policy of spreading 'democracy'--i.e., unlimited majority rule--throughout the Middle East."

Bush definitely has a lot riding on the spread of democracy. But is democracy truly "unlimited majority rule"?

It's the "unlimited" part that makes me wary.
Government without limits gets scary.