Does anyone know what a device that converts wifi TO ethernet is called? Has anyone used one that works with 802.11x?

A user in one of our offices has a device that only supports ethernet. At this point it looks like the easiest solution is to just put a box in their office that converts wifi (802.11x) to ethernet, then plug the ethernet cable into her device.

Does anyone know what this is called? Google only returns devices that do it the other way around (convert ethernet to wifi... aka a router).