The crossword solution for the term 'implants firmly' is 'ETCHES'. Etching is a process used to create designs, patterns, or text on a hard surface, such as metal or glass. It involves using a sharp tool to cut into the surface and create a design. Etching is often used in the medical field to create implants that are firmly attached to the body. Implants are devices that are surgically inserted into the body to replace or support a damaged or missing part of the body. Etching is used to ensure that the implant is firmly attached to the body and does not move around.