Definition of secede - withdraw formally from membership of a federal union, an alliance, or a political or religious organization Definition of secede - withdraw formally from membership of a federal union, an alliance, or a political or religious organization
A shell casing is a piece of ammunition that is made of metal. It is often brass, but it can be made of other metals as well, and the more durable the better. Shell casings can be made from any kind of ammunition that is fired from a pistol, rifle or shotgun. It is not a bullet, but it is a piece of the larger ammunition mechanism that is loaded into the chamber to be shot.
1 The top domed part of a turtleâs shell is called the carapase and the bottom underlying part is called the plastron. 2  The shell of a turtle is made up of 60 different bones all connected together. 3  These bony parts of the shell are covered with plates that make the shell stronger.