Typically the flared end of a brass instrument (trumpet, coronet, trombone) <span>is called the "bell"</span>
In reaction
to the fugitive slave law, most of the people in the north showed open defiance
to the law and devised means to support the Underground Railroad to Canada. It
is reported that they formed committees to facilitate the transport of African
American slaves to Canada through the Underground Railroad.
I believe the answer you're looking for is VETO.
A Veto is a constitutional right to reject a decision.
-Seth