F2
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F2, F02, F.II, F.2, F 2 or F-2 may refer to :
Science and mathematics
- F2, the chemical formula for fluorine
- F2, a layer of the ionosphere
- F2 hybrid, a type of crossing in classical genetics
- F-2 mycotoxin, a chemical compound
- F2 tornado, a rating of tornado on the Fujita scale
- Guillard's F/2 Mixture, a growth medium (specific concentration's of nutrients) that algae is grown in
- NIST-F2, atomic clock
- , the Galois field with two elements, also denoted as GF(2)
- F2, the free group on two generators
Medicine
- F02, the ICD-10 code for Dementia in other diseases classified elsewhere
- F2-isoprostane, a type of isoprostane
- F-2 (psychedelic), a psychedelic drug
- Foundation Year 2, the second year of the UK Foundation Programme for postgraduate medical practitioners
- A brain region located in the frontal cortex of the macaque
- Factor II also known as Thrombin
Transportation
Aviation
- Beechcraft F-2 Expeditor
- Blackburn F.2 Lincock, a 1928 British single-seat lightweight fighter
- Bristol F.2 Fighter, a 1916 British two-seat biplane fighter and reconnaissance aircraft
- F2 is the IATA airline designator for Fly Air
- F-2 Banshee, a carrier-based jet fighter aircraft of the 1950s
- F2 Tiger, another name for the Fieseler Fi 2 aerobatic plane
- Fairey F.2, a 1917 British fighter prototype
- Felixstowe F.2, a 1917 British First World War flying boat
- Flanders F.2, a 1911 British experimental single-seat monoplane aircraft
- Fokker F.II, a 1919 German early airliner
- Hunter F 2, a 1953 Hawker Hunter fighter aircraft variant
- Lübeck-Travemünde F.2, early German reconnaissance floatplane
- Metropolitan-Vickers F.2, a 1941 British early turbojet engine
- Mitsubishi F-2, a Japanese fighter aircraft, based on the F-16 Fighting Falcon
- RAF Tornado F.2, the first generation of the Panavia Tornado Air Defence Variant
Maritime
- HMS F2, a F-class submarine of the Royal Navy
- USS F-2 (SS-21), an F-class submarine of the United States Navy
- Sydney Ferries' Taronga Zoo ferry services, known as the F2
Rail
- GSR Class F2, an Irish 2–4–2T steam locomotive
- EMD F2, a locomotive model
- H&BR Class F2, a locomotive model
- PRR F2, an American PRR 2-6-0 steam locomotive
Road
- Alta F2, 1952 racing car
- F2 Castlereagh Freeway, one of the names used for the North Western Expressway in Sydney
- F2 road (Zimbabwe), a road in Zimbabwe
- Formula Two, a category in motor racing
Military
- F 2 Hägernäs, a former Swedish Air Force wing
- F2 L16 81mm Mortar, version produced and used by Australia
- 20 mm modèle F2 gun, French naval gun
- KMW F2, a German-designed, light, armoured vehicle, which is intended to replace the Fennek
- Fairey F.2, a 1917 British fighter aircraft
Technology
- F2: The Open Financial Framework
- Flat-twin engine
- A function key, on a computer keyboard
- A standard white point for cool white fluorescent lamps
- Nikon F2, a professional SLR camera
- Taito F2 System, video arcade game hardware
- F2 in telecommunication is also referred to as the Secondary Feeder Cable
- F2, a particular flint glass.
Computers
- Function key F2 on the keyboard
United States Visa
- F-2 visas are for spouses and children of F-1 visa holders.