Editing FS (section)

==Science and technology==
* [[Feldspar]], a group of silicate minerals
* Fin-stabilized projectile, such as the [[APFSDS]] or [[HEAT]]-FS
* [[Flank speed]], a ship's true maximum speed
* [[Frameshift mutation]], a genetic mutation
* [[Fujita scale]] (F-Scale), or Fujita-Pearson scale, a scale for rating tornado intensity
* [[Full scale]], in electronics and signal processing, the maximum amplitude a system can present
* [[Marine flooding surface]], a sharp contact between deep-water and shallow-water facies in sequence stratigraphy
* [[Sampling rate]] (symbol <math>f_s</math>), in communications theory
* [[Fourier series]], a mathematical tool used for analyzing periodic functions

===Computing===
* [[FS register]], in X86fs computer architecture
* File Separator, a character in the [[C0 and C1 control codes]]
* [[File server]], a form of disk storage
* [[File system]], in computer science and database theory
* [[Flipnote Studio]], a DSi animation software
* [[Forward secrecy]], a property of cryptographic systems
* Fullscreen, a picture format in [[4:3]] aspect ratio, as opposed to widescreen
* [[IBM Future Systems project]] a failed IBM project to develop a computer line to replace System/360
* [[Feature structure]], a set of attribute–value pairs

===Medicine===
* [[Felty's syndrome]], autoimmune disease, with rheumatoid arthritis, enlargement of the spleen and too few neutrophils in the blood
* [[Fibrin sealant]], a type of surgical tissue adhesive used during surgery to control bleeding
* [[Flight Surgeon]], a physician who is responsible for the medical evaluation, certification and treatment of aviation personnel
* [[Fractional shortening]], of the heart
* ''[[Formularium Slovenicum]]'', Slovenian addendum to the European Pharmacopoeia

===Physics===
* [[Femtosecond]] (fs), an SI unit of time
* [[Siemens (unit)]] [[Femtosiemens]], an SI unit of electric conductance
* [[Fine structure]], in atomic physics