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.
Definition of Circle. Definition: A circle is the set of all points that are the same distance, r, from a fixed point. General Formula: X 2 + Y 2 =r 2 where r is the radius. 1  Unlike parabolas, circles ALWAYS have X 2 and Y 2 terms. 2  X2 + Y2=4 is a circle with a radius of 2 (since 4 =22). 3  Remember that a circle is a locus of points.