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|Look up C or c in Wiktionary, the free dictionary.|
C is the third letter in the Latin alphabet.
C may also refer to:
- C (programming language), developed at Bell Labs in 1972
- C++, an object oriented programming language based on C
- Objective-C, an object oriented programming language based on C, while available on various platforms, used mainly on Mac OS X and iOS.
- C# (programming language), developed at Microsoft in 2001
- C, a Hexadecimal digit
- Control-C, a keyboard control code
- C, a computable function, the set of all computable decision problems.
C:, or "Drive C", the default drive letter assignment for the default hard drive in MS-DOS, PC DOS, and Microsoft Windows.
- C battery (size)
- C battery (type), grid bias battery for vacuum tube radios
- A battery charger rate or discharge rate equal to the capacity of a battery divided by 1 hour. For example C for a 1600 mAh battery would be 1600 mA (or 1.6 amps). 2C is twice this rate and 1/2C is half the rate.
- C-clamp, a type of fastener
- C band, radio frequency band from 4 GHz to 6 GHz
- C, the standard abbreviation for an electronic capacitor, used e.g. in circuit diagrams
- Vitamin C
- Haplogroup C (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
- Haplogroup C-M130 (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup once called simply C
- ATC code C Cardiovascular system, a section of the Anatomical Therapeutic Chemical Classification System
- C1 to C7, symbols for cervical vertebrae
- C, chemical symbol for the element carbon
- C, chemical formula for atomic carbon
- C, a prefix for astronomical objects listed in the Caldwell catalogue
- c, the speed of light in a vacuum
- c, the speed of sound
- c, the specific heat capacity of a substance
- c, any constant (mathematics)
- Cytosine, nucleic acid
- C, capacitance
- C, symbol of coulomb
- Line C (disambiguation) used in several public transport systems
- NZR C class (1873) train
- NZR C class (1930) train
- C, or 0-6-0 classification, a type of locomotive with three powered axles
- C, a digit meaning twelve in hexadecimal and other positional numeral systems with a radix of 13 or greater
- C, the constant of integration
- Ⅽ, in Roman numerals, the symbol for 100
- ℂ or , the set of all complex numbers
- ℭ or , the cardinality of the continuum
- C, the set of continuous functions
- In probability theory, the combination or "choose" function, uses the notations
, , , , or .
- c space, the space of all convergent sequences in functional analysis
- c., or circa, an approximate date or other value
- °C, degrees Celsius
- C, for carat (purity)
- c, centi-, an SI prefix
- C, coulomb, the SI derived unit for electric charge
- c, cup (unit), a unit of volume
- C (musical note), and keys based on it:
- , symbol used to designate common time
- , symbol used to designate cut time
- Low C (song), a 2005 song by Supergrass
- "C" is a chanson by Francis Poulenc, one of Deux Poèmes de Louis Aragon.
- C, a 1924 novel by Maurice Baring
- C, a novel by Tom McCarthy shortlisted for the 2010 Man Booker Prize
- Middle C (novel), a 2013 novel by William H. Gass
- C California Style Magazine, magazine on California style, culture, etc.
- C-lehti, Finnish computer magazine
- C Magazine, published by Cardinal Courier Media in New York
- C, alias for Mansfield Smith-Cumming (1859–1923), Chief of the SIS, the UK Secret Intelligence Service, also known as MI6
- His successors as Chief of the SIS have since been generally known by his alias, C.
- C., Roman abbreviation for Gaius
- Captain (ice hockey), the player who wears a "C" on his jersey
- Catcher, in baseball
- Several sports have "C" as an abbreviation for center
- C (plastic toy), a plastic toy from former Czechoslovakia
- C (grade), a satisfactory grade in education
- Citigroup, Inc. Stock Symbol for Citigroup
- C, the NYSE ticker for Grupo Financiero Banamex
- [c], International Phonetic Alphabet symbol for the voiceless palatal stop
- [C] (anime), by Tatsunoko Production, Fuji TV
- Class C (disambiguation)
- C class (disambiguation)
- Sea (disambiguation)
- See (disambiguation)
- Cee (disambiguation)
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