Etching is a process of using acid to draw or create designs on a surface. It is a form of art that has been used for centuries, and is still popular today. The term 'draws with acid' refers to the use of acid to create a design on a surface. This can be done by applying an acid to the surface and then using a tool to scratch away the material, leaving behind a design. Etching is often used in printmaking, jewelry making, and other forms of art.