C3

C3, C-3, C.3, C03, C.III or C-III may refer to:

Biology

• C3 carbon fixation in plants
• C3-convertase, an enzyme
• Apolipoprotein C3, a human very low density lipoprotein
• ATC code C03 Diuretics, a subgroup of the Anatomical Therapeutic Chemical Classification System
• Castavinol C3, a natural phenolic compound found in red wines
• Cytochrome-c3 hydrogenase, an enzyme
• Haplogroup C3 (Y-DNA)
• In human anatomy, C3 may refer to:
  • Cervical vertebra 3, one of the cervical vertebrae of the vertebral column
  • Cervical spinal nerve 3
• Clinical Cell Culture, a medical technology company
• Complement component 3, a protein of the innate immune system
• C03, Malignant neoplasm of gum ICD-10 code

Military

• C³, Command, control, and communications, a military concept
• C-3 (plastic explosive), a plastic explosive related to C4
• C-3, a United States military designation for the Ford Trimotor
• the designation for several German World War I and World War II armed reconnaissance aircraft
  • AEG C.III
  • AGO C.III, a reconnaissance biplane of World War I
  • Albatros C.III
  • DFW C.III, a DFW aircraft
• NAG C.III, an engine powering the Gotha G.IV aircraft
• C-3, a U.S. military transport version of the Martin 4-0-4
• Type C3 submarine, a WWII Imperial Japanese Navy cargo carrier submarine
• Spanish submarine C-3
• HMS C3, a British C class submarine
• Type C3 class ship, a type of merchant cargo ships of United States Maritime Commission "C" design
• USS C-3 (SS-14), a United States C class submarineddd
• USS Baltimore (C-3), a protected cruiser of the United States Navy
• C3 Howitzer, a lengthened variant of the M101 used by the Canadian Armed Forces

Music

• a model of Hammond organ
• High C in music (c3 in European notation)
• Low C in music (C3 in American notation)
• Tha Carter III, the title of an album by rapper Lil Wayne
• C3 Presents, independent American concert promoters

Technology

• C₃, a symbol for characteristic energy, which in astrodynamics is equal to the square of the hyperbolic excess velocity
• C₃, the chemical symbol for tricarbon, a molecule found in interstellar space
• C3 linearization, a computer science algorithm for resolving the order of method resolution in multiple inheritance conditions
• Delfi-C3, a Dutch CubeSat satellite
• Saturn C-3, a 1960 rocket in the Saturn C series
• Chaos Communication Congress, the biggest annual hacker event in Europe
• Chrysler Comprehensive Compensation System, important in the development of Extreme Programming
• VIA C3, a computer processor
• Creatures 3, a video game
• Cluster 3, also known as Samba, an ESA satellite
• C3-e, Energy Resource Management software company founded by Tom Siebel

Transportation

• Circumferential Road 3, a highway in the Philippines
• Bavarian C III, a German steam locomotive model
• Bavarian C III (Ostbahn), a 1867 German steam locomotive model
• Chevrolet Corvette C3, the third production design of the Chevrolet Corvette
• Cierva C.3, a 1921 Spanish experimental autogyro
• Citroën C3, a car
• DSER Class C3, a Dublin and South Eastern Railway Irish steam locomotive
• LB&SCR C3 class, a British LB&SCR locomotive
• London Buses route C3, a Transport for London contracted bus route
• Nimrod NRA/C3, a 1983 Group C racing car never achieved
• Yamaha C3, a 2007 liquid cooled 49cc four-stroke motor scooter
• C3, the Long Island Rail Road's designation for Kawasaki-built Bi-Level coaches

Miscellaneous

• C³, a Japanese light novel series and anime by Hazuki Minase
• C3, the code for permission to use specific land or premises for dwellings in town and country planning in the United Kingdom
• C3, the UEFA Europa League in football
• C3, a standard paper size defined in ISO 216
• Tippmann C-3, a Pump-Action Paintball marker that uses propane gas
• Christian City Churches, a worldwide Pentecostal denomination
• a class in FM radio broadcasting in North America
• Argus C3, a 35mm rangefinder camera
• Nokia C3 (disambiguation), cellphone
• Caldwell 3 (NGC 4236), a barred spiral galaxy in Draco
• C3 Policing, A methodology being employed by Massachusetts State Police and Springfield Police Officers to combat gangs in Springfield, Massachusetts

See also

• CCC (disambiguation)