The term 'Decoder FEATURE' can be broken down into two parts: 'Decoder' and 'FEATURE'. A decoder is a device or program that takes encoded data and converts it into a form that can be understood by a computer. A FEATURE is a distinct property or piece of information that describes an object, such as a product or service. In this case, the Decoder FEATURE is a specific FEATURE of a product or service that allows it to decode encoded data. The crossword solution for this term is 'DIAL', which stands for Digital Interface Adapter. This is a type of device that connects two digital systems together, allowing them to communicate with each other.