The definition of a Dx coils is a type of coil that is designed to be used in a variety of applications. These coils are designed to be used in heating and cooling systems, as well as in other industrial applications. Dx coils are typically made from copper or aluminum and can be found in a variety of sizes and shapes. They are also known for their durability and ability to withstand extreme temperatures. Dx coils are also used in a variety of electrical applications, such as in transformers, capacitors, and inductors. These coils are also used in a variety of medical applications, such as in MRI machines and in other medical imaging equipment. Dx coils are designed to be energy efficient and are often used in energy-saving systems. In addition, they are often used in the automotive industry, where they are used to create a smoother ride and reduce noise.