A subpoena duces tecum is a court order requiring the person named in it to produce certain books, papers, or other tangible things for the court.
(plural circlets) 1  A crown without arches or a covering. 2  A small circle. 3  A round body; an orb. ( UK, dialect) A circular piece of wood put under a dish at table.
A circle is a shape with all points the same distance from its center. A circle is named by its center. Thus, the circle to the right is called circle A since its center is at point A. Some real world examples of a circle are a wheel, a dinner plate and (the surface of) a coin. The distance across a circle through the center is called the diameter. A real-world example of diameter is a 9-inch plate.