appliance(redirected from Hawley retaining orthodontic appliance)
Also found in: Dictionary, Thesaurus, Medical.
1. any piece of equipment having a specific function
2. a device fitted to a machine or tool to adapt it for a specific purpose
3. another name for a fire engine
A piece of equipment that draws electric or other energy and produces a desired work-saving or other result, such as an electric heater, a radio, or an electronic range.
appliance, appliance equipment
Any device (other than industrial) which utilizes gas or electricity as a fuel to produce air-conditioning, heat, light, refrigeration, or to perform one or more functions such as dishwashing; usually built in a standard size or type and installed or connected as a unit.