A trace element is an element that is present in very small amounts in a material or organism. Trace elements are essential for the normal functioning of the body and are found in many foods, including fruits, vegetables, grains, and meats. The term 'trace element' is derived from the fact that these elements are present in such small amounts that they can only be detected by using special techniques such as spectroscopy or chromatography. The crossword solution for the term 'trace element' is 'STENCIL, ' which refers to a template used to create a pattern or design on a surface. Stencils are often used to create intricate designs on walls, fabrics, and other surfaces.