|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
|a gadget; dingus; thingumbob.|
|1.||a machine or device, esp an electrical one used domestically|
|2.||any piece of equipment having a specific function|
|3.||a device fitted to a machine or tool to adapt it for a specific purpose|
|4.||another name for a fire engine|
appliance ap·pli·ance (ə-plī'əns)
A dental or surgical device designed to perform a therapeutic or corrective function.