Description
Fully Qualified Domain Name (FQDN)
Complete Definition
A fully qualified domain name (or FQDN) is an unambiguous domain name that specifies the exact location in the Domain Name System's tree hierarchy through to a top-level domain and finally to the root domain. Technically, a FQDN has a trailing dot
For example: somehost.example.com.
Other Definitions:
Wikipedia FQDN definition
Also See: