C (disambiguation)

C is the third letter in the Latin alphabet.

C or c may also refer to:

Computing

• C (programming language), developed at Bell Labs in 1972
• C, a hexadecimal digit
• 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 DOS and Windows

Measurement

• °C, Celsius temperature scale
• Carat (purity)
• centi-, an SI prefix
• Coulomb, the SI derived unit for electric charge
• Cup (unit), a unit of volume

Science

• Troponin C, one of the three troponins
• Carbon, symbol C, a chemical element
• Atomic carbon or C
• ATC code C or cardiovascular system, a section of the Anatomical Therapeutic Chemical Classification System
• 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
• Cytosine, nucleic acid
• Cysteine
• C, a prefix for astronomical objects listed in the Caldwell catalogue, ranging from C1 to C109
• C, a prefix for astronomical star clusters, which follow the IAU's "Chhmm±ddd" format
• c, the speed of light in a vacuum
• c, the speed of sound
• c, the specific heat capacity of a substance
• c, any constant
• C, capacitance
• C, symbol of coulomb
• Charm quark (
  c
  )
• C-value, DNA contained within a haploid nucleus

Technology

• C battery, a size of battery
• Capacitor or C
• C battery, a type of battery for vacuum tube radios
• C or C-rate, a rate of charge and discharge of a battery

Mathematics

• 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, ℂ, or $\mathbb {C}$, the set of all complex numbers
• ℭ or ${\mathfrak {c}}$, the cardinality of the continuum
• C, the set of continuous functions
• The combination or "choose" function
• c space, the space of all convergent sequences in functional analysis

Music

• C (musical note), and keys based on it:
  • C major
  • C minor
• C Album, an album by Kinki Kids
• C major chord, a chord in popular music
• , symbol used to designate common time
• , symbol used to designate alla breve
• "C", a composition by Francis Poulenc, one of Deux Poèmes de Louis Aragon

Literature

• C (novel), a novel by Tom McCarthy
• C, a 1924 novel by Maurice Baring
• C Magazine, a magazine published by Cardinal Courier Media
• "C" Is for Corpse, the third novel in Sue Grafton's "Alphabet mystery" series, published in 1986
• C-lehti ('C-magazine'), a defunct Finnish computer magazine

Transportation

• 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, the unofficial designation used by the U.S. Navy classification for Protected Cruisers and Peace Cruisers before the 1920 reclassification.
• C (Los Angeles Railway)
• C (New York City Subway service)
• C Line (Los Angeles Metro)
• Line C of the Buenos Aires Subte

Sport

• Captain (ice hockey)
• Catcher, a position in baseball
• Center (basketball)
• Center (gridiron football)

Other uses

• Prefix "c", to specify a column number as in-source-locator in old citations
• С, a letter of the Cyrillic alphabet
• C (anime), by Tatsunoko Production, Fuji TV
• C (grade), a satisfactory grade in education
• C (plastic toy), a plastic toy from former Czechoslovakia
• Citigroup, Inc.'s stock ticker symbol
• Gaius or C
• Center Party (Sweden), a Swedish political party
• Mansfield Smith-Cumming or C (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, also known as Max Denbigh, a character played by Andrew Scott in the film Spectre
• c (IPA) in the International Phonetic Alphabet (IPA), the voiceless palatal stop
• Dominical letter C for a common year starting on Friday
• C, the production code for the 1964 Doctor Who serial The Edge of Destruction
• Charlie, the military time zone code for UTC+03:00
• c, alternative name for Grimes
• Farmall C, a tractor produced by International Harvester from 1948 to 1951
• C (restaurant), a restaurant in Tampere, Finland

See also

• All pages with titles containing c
• C. (disambiguation)
• (C) (disambiguation), a parenthetical C
• C band (disambiguation)
• C-clamp, a type of fastener
• C class (disambiguation)
• Class C (disambiguation)
• c group (disambiguation)
• Group C (disambiguation)
• Line C (disambiguation) including "C line"; used in several public transport systems
• C series (disambiguation) including "Series C"
• Circle-c (disambiguation)
• C++, an object oriented programming language based on C
• C# (programming language), developed at Microsoft in 2001
• Cee (disambiguation)
• Cent (currency)
• Center (disambiguation)#Sports
• Cervical vertebrae
• Control-C, a keyboard control code
• Copyright symbol
• Objective-C, an object oriented programming language based on C, while available on various platforms, used mainly on OS X and iOS
• Sea (disambiguation)
• See (disambiguation)
• Vitamin C