The term COMPASS TRACE is composed of two words, ARC and COMPASS. An ARC is a curved line that forms part of the circumference of a circle or other shape. A COMPASS is an instrument used for navigation and orientation that shows directions in a frame of reference. Together, the two words form the term COMPASS TRACE, which is a method of drawing a curved line by using a COMPASS. This method is used in engineering, architecture, and other fields to create precise curves.