A "side-mount" refers to a type of mounting system where an object is attached to the side of another object, rather than being placed on top or underneath. This method is commonly used in various applications, such as in automotive settings for attaching accessories or in fishing for securing rods. In the context of scuba diving, a side-mount configuration allows divers to carry their tanks on the sides of their bodies, providing greater mobility and ease of movement. This setup is particularly beneficial in tight spaces, enhancing the diver's ability to navigate underwater environments.