The word "hypospray" is used to describe a medical tool that is used to deliver medicine through a person's skin. There are several synonyms that can be used to describe this tool, including jet injector, needle-free injector, and skin injector. These terms are often used interchangeably to refer to the same technology that is used to administer medication to patients. Other synonyms that may be used to describe hypospray technology include air-powered injector, pressure injector, and ballistic injector. Regardless of the terminology used, these tools play a major role in modern medicine and are used to deliver medications in a wide range of settings.