C4

Look up c4 in Wiktionary, the free dictionary.

C4, C04, C.IV or C-4 may refer to:

• C-4 (explosive), a type of plastic explosive

In biology:

• C4 carbon fixation, a pathway for carbon fixation in photosynthesis
• ATC code C04, section of the Anatomical Therapeutic Chemical Classification System
• In human anatomy, C4 may refer to:

• Cervical vertebra 4, one of the cervical vertebrae of the vertebral column
• Cervical spinal nerve 4, a nerve originating in the neck

• Apolipoprotein C4, a human gene
• Complement component 4, a protein
• C04, Oral cancer ICD-10 code

In vehicles:

• C4, a class of Audi 100 and Audi A6 cars
• C-4, the US Army designation of the Ford Trimotor
• C-4 Academe, the military version of Gulfstream I twin turboprop business aircraft
• AEG C.IV, a German World War I reconnaissance aircraft
• AGO C.IV, a 1917 German reconnaissance aircraft
• Bavarian C IV, a 1884 German steam locomotive
• Chevrolet Corvette C4, the fourth production design of the Chevrolet Corvette
• Cierva C.4, a 1922 Spanish experimental autogyro
• Citroën C4, a car made by Citroën
• DFW C.IV, a 1916 German reconnaissance aircraft
• Fokker C.IV, a 1923 Dutch two-seat reconnaissance aircraft
• Ford C4 transmission, an automatic transmission
• GS&WR Class C4, a Great Southern and Western Railway Irish steam locomotive
• HMS C4, a British C class submarine of the Royal Navy
• Menasco C4, a 1930s 4-cylinder, air-cooled, in-line, inverted, aero-engine
• Rumpler C.IV, a 1917 German single-engine, two-seater reconnaissance biplane
• Saturn C-4, a 1960 conceptual American launch vehicle
• Sauber C4, a Sauber sportscar
• Spyker C4, a Spyker car
• USS C-4 (SS-15), a United States C class submarine of the United States Navy
• USS Philadelphia (C-4), a protected cruiser of the United States Navy
• Type C4 ship, merchant cargo ships of United States Maritime Commission "C" design
• Canadair North Star C-4 aircraft derived from the Douglas DC-4
• Circumferential Road 4, a highway in the Philippines

In paper:

• C4, an international standard paper size (229*324 mm), defined in ISO 216
• C4, the envelope size matching the A4 paper size

In computing:

• Cx4 chip, an add-on microprocessor chip for the Super Nintendo system (often incorrectly referred to as the C4 chip)
• Flip chip packaging is also called Controlled Collapse Chip Connection, or C4
• VIA C4, a planned design of central processing unit for a personal computer
• C4 (conference), a Macintosh software developers conference
• C4 Engine, a next-generation 3D game engine
• Suneido programming language is the successor language to the C4 programming language from Axon Development Corporation

In music and television:

• Channel 4, a United Kingdom television broadcaster
• C4 (TV channel), a New Zealand television music channel
• Middle C in music (American notation)
• C4 Records, a record label
• C4 (band), a neo-classical metal band set up by Michael Angelo Batio

In sports

• C4, an abbreviation for a four-man Sprint Canoe, see Canoe racing
• C4, a term used to refer to the UEFA Intertoto Cup, a football competition (mainly used in non-English speaking countries)

In chess

• 1. c4, also called the English Opening, is the fourth most popular chess opening.

Other:

• C4 (Colombia), a political party in Colombia
• C4, an acronym for Command, Control, Communications, and Computers, used by the US Department of Defense
• C4 (heraldry), the monogram of Christian IV of Denmark, used in the city arms of Kristianstad, Sweden since 1622
• C-4, professional wrestler Paul Burchill's name for his finishing move, a moonsault uranage
• Churches Covered and Connected in Covenant, a Religious Association founded by Archbishop LeRoy Bailey Jr.
• Butyl-type hydrocarbon chain with 4 carbon atoms, especially in C4 reversed-phase chromatography columns

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.