"Etched" refers to a process where a design or image is carved into a surface, typically using acid or a sharp tool. This technique is commonly used in art and manufacturing to create detailed patterns on materials like glass, metal, or stone. The result is a permanent mark that can enhance the aesthetic appeal of the object. In the context of art, etching is a popular printmaking technique where an image is drawn onto a metal plate coated with a waxy ground. The exposed areas are then treated with acid, which bites into the metal, creating grooves that hold ink. This method allows for intricate designs and is valued for its precision.