What term refers to the process of making something flatter?

The term that refers to the process of making something flatter is "Abflachung." In various contexts, especially in technical and engineering fields, this term describes a method or process aimed at reducing the height or profile of an object to achieve a flatter surface. This could be achieved through various techniques such as machining, grinding, or other forms of surface treatment.

Understanding this term is crucial for fields that require precision in the shapes and forms of components, such as manufacturing or construction. In contrast, while the other terms might represent concepts related to surfaces or physical processes, they do not specifically denote flattening. For example, "Riefe" refers to grooves or furrows, "Reibkorrosion" relates to wear caused by friction, and "entsorgen" means to dispose of something, none of which pertain directly to the act of making something flatter.