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.
The shape of something rotating; a vortex.
One 360° turn in a spring or similar helix.
A mathematical operation on two functions that produces a third that expresses how the shape of one is modified by the other; the integral of the product of the two functions after one is reflected about the y-axis and shifted along the x-axis.
Any of the folds on the surface of the brain.
A twist or fold.
The state or condition of being convoluted.
A function which maps a tuple of sequences into a sequence of tuples.