The Full Form of VHG is Virtual HyperGlossary.

The Virtual Hyperglossary (VHG) project endeavors to “enable knowledge enhancement through global terminology; the VHG project offers terminological services to people who want to provide them on the web especially learned societies and also to people creating their intranets.” Written in XML and based upon ISO standards for terminology (ISO FDIS 12620, MARTIF – MAchine Readable Terminology Interchange Format), the VHG employs “innovative concepts such as clickable concept maps” and uses current technologies such as java.”