HFS

• Hyperfine structure
  Hyperfine structure
  The term hyperfine structure refers to a collection of different effects leading to small shifts and splittings in the energy levels of atoms, molecules and ions. The name is a reference to the fine structure which results from the interaction between the magnetic moments associated with the...
  
  
• Hexafluorosilicic acid
• WHFS (historic), 'HFS was a slang abbreviation for the radio stations with that call sign in the Washington / Baltimore area
• Hemifacial spasm
  Hemifacial spasm
  Hemifacial spasm or HFS is a neurological disorder in which blood vessels constrict the seventh cranial nerve and cause varying degrees of facial spasming, typically originating around the eye of the afflicted side of the face. Because the nerve directs muscular activities in a particular region,...
  
  , a neurologic disorder which causes involuntary spasm
  Spasm
  A spasm is a sudden, involuntary contraction of a muscle, a group of muscles, or a hollow organ, or a similarly sudden contraction of an orifice. It is sometimes accompanied by a sudden burst of pain, but is usually harmless and ceases after a few minutes...
  
  s in one side of the face
• Hospitality Franchise Systems, (HFS) later Cendant
  Cendant
  Cendant Corporation was a New York-based provider of business and consumer services, primarily within the real estate and travel industries. In 2005 and 2006, Cendant broke up and spun off or sold its constituent businesses...
  
  
• Haddonfield Friends School
  Haddonfield Friends School
  Haddonfield Friends School is a private, Quaker coeducational day school located in Haddonfield, in Camden County, New Jersey, United States...
  
  , a Quaker school in Haddonfield, NJ
• Hatfield and Stainforth railway station
  Hatfield and Stainforth railway station
  Hatfield and Stainforth railway station serves the Doncaster suburbs of Hatfield and Stainforth in South Yorkshire, England.The original station, known until the 1990s as "Stainforth and Hatfield" and was built in 1866 as a replacement for the South Yorkshire Railway's Stainforth when their line...
  
  , England
  England
  England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west and the North Sea to the east, with the English Channel to the south separating it from continental...
  
  ; National Rail
  National Rail
  National Rail is a title used by the Association of Train Operating Companies as a generic term to define the passenger rail services operated in Great Britain...
  
   station code HFS

In computing

• Hardware Functionality Scan
  Hardware Functionality Scan
  A Hardware Functionality Scan is conducted in order to verify that a certain device is really what it claims to be. It's patented by Microsoft....
  
  
• Hi Performance FileSystem
  Hi Performance FileSystem
  Hi Performance FileSystem, not to be confused with OS/2's HPFS or Apple's Hierarchical File System, is a file system used in the HP-UX operating system. It is a variant of the Unix File System....
  
  , a file system used by the HP-UX
  HP-UX
  HP-UX is Hewlett-Packard's proprietary implementation of the Unix operating system, based on System V . It runs on the HP 9000 PA-RISC-based range of processors and HP Integrity Intel's Itanium-based systems, and was also available for later Apollo/Domain systems...
  
   operating system
  Operating system
  An operating system is an interface between hardware and user which is responsible for the management and coordination of activities and the sharing of the resources of the computer that acts as a host for computing applications run on the machine. As a host, one of the purposes of an operating...
  
  
• Hierarchical File System
  Hierarchical File System
  Hierarchical File System , is a file system developed by Apple Inc. for use in computer systems running Mac OS. Originally designed for use on floppy and hard disks, it can also be found on read-only media such as CD-ROMs...
  
  , a file system used by Apple Macintosh computers
• HTTP File Server
  HTTP File Server
  HTTP File Server, otherwise known as HFS, is a free web server specifically designed for publishing and sharing files.The complete feature set differs from other web servers; it lacks some common features, like CGI, but includes, for example, counting file downloads...