An ornamental figure, often on an oval shield.
A paper cartridge.
A wooden case filled with balls, to be shot from a cannon.
A gunner's bag for ammunition.
A military pass for a soldier on furlough.
An oval figure containing the characters of an important personal name, such as that of royal or divine people.
A helix.
A section of track that forms a circle and crosses over itself, used for gaining height in mountainous territory.
A self-sustaining process with a lot of momentum involved, so it is difficult to accelerate or stop it at once.
A curve that is the locus of a point that rotates about a fixed point while continuously increasing its distance from that point.
To increase continually.
To cause something to spiral.
To move along the path of a spiral or helix.
Helical, like a spiral.