The term "auditory brainstem implant" refers to a medical device that is surgically implanted in patients who have lost their ability to hear due to damage in the inner ear or the auditory nerve. This device works by stimulating the auditory nerve directly through electrodes that are placed on the surface of the brainstem. There are a number of synonyms for this medical term, such as "brainstem implant," "cochlear nucleus implant," or "auditory brainstem stimulator." These terms are often used interchangeably, although they may have slightly different meanings depending on the specific type of device being used. Regardless of the name used to describe this medical technology, it represents a major breakthrough in the field of hearing restoration and has helped many individuals to regain their ability to hear and communicate.