The term 'circular components' refers to components that are circular in shape. These components are often used in a variety of applications, such as in electronics, mechanics, and robotics. The crossword solution for this term is ADS, which stands for Annular Disc Spring. Annular Disc Springs are a type of mechanical spring that is made up of several concentric discs that are stacked together. They are used to provide a constant force over a range of deflections, and are commonly used in automotive, aerospace, and industrial applications.