Borstenkopf
Borstenkopf is a term that can refer to several things, most commonly a type of brush or bristled head used for cleaning or grooming. It describes the part of a brush where the bristles are located. These bristles can be made from various materials, including natural animal hair, plant fibers, or synthetic materials like nylon or plastic. The arrangement, density, and stiffness of the bristles vary depending on the intended use of the Borstenkopf. For example, a Borstenkopf on a toothbrush will have different characteristics than one on a scrubbing brush or a hairbrush.
In some specific contexts, Borstenkopf might also be used as a surname, though this is less common.