The crossword solution for the term CORRODING, WITH 'INTO' is EATING. Corrosion is a natural process that occurs when a metal reacts with its environment, usually resulting in the metal breaking down into smaller pieces. Corrosion can be caused by a variety of factors, including exposure to water, air, and other chemicals. When corrosion occurs, it is often referred to as 'eating into' the metal, as the metal is slowly broken down into smaller pieces.