What type of receptacle is defined as a single receptacle for one appliance within a dedicated space?

A single receptacle for one appliance within a dedicated space is known as a dedicated receptacle. This type of receptacle is specifically designed to serve a single device, ensuring that it operates safely and effectively without sharing power with other appliances. Dedicated receptacles are commonly used for high-power appliances, such as refrigerators, freezers, or other equipment that requires a consistent power supply, minimizing the risk of overload and tripping the circuit breaker.

In contrast, the other types of receptacles serve different functions. A tamper-resistant receptacle includes safety features to prevent the insertion of foreign objects, enhancing child safety. A GFCI receptacle is designed to protect against ground faults by shutting off power if it detects an imbalance in electrical flow, typically used in wet or damp locations. A dual-source receptacle, while less common, allows two separate sources to connect to one appliance, which does not align with the definition of a dedicated receptacle. Therefore, the focus on serving a single appliance in a dedicated space clearly distinguishes dedicated receptacles as the correct answer.