Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The third letter of the modern English alphabet.
  • n. Any of the speech sounds represented by the letter c.
  • n. The third in a series.
  • n. Something shaped like the letter C.
  • n. The third best or third highest in quality or rank: a mark of C on a term paper.
  • n. Music The first tone in the scale of C major or the third tone in the relative minor scale.
  • n. Music A key or scale in which the tone of C is the tonic.
  • n. Music A written or printed note representing this tone.
  • n. Music A string, key, or pipe tuned to the pitch of this tone.
  • abbr. Physics candle
  • abbr. carat
  • abbr. charm quark
  • abbr. circumference
  • abbr. Mathematics constant
  • abbr. cubic

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The third letter of the basic modern Latin alphabet.
  • n. voiceless palatal plosive.
  • n. cardinal number one hundred (100).
  • n. The speed of light, 2.99792458 × 108 m/s.
  • n. The third letter of the English alphabet, called cee and written in the Latin script.
  • n. The ordinal number third, derived from this letter of the English alphabet, called cee and written in the Latin script.
  • n. The middle tone in either one of the sets of seven white keys on a keyboard or a set of seven strings on a stringed instrument.
  • n. The speed of light as a unit of speed, exactly 2.99792458 × 108 m/s.
  • abbr. Alternative form of c..

from the GNU version of the Collaborative International Dictionary of English

  • C is the third letter of the English alphabet. It is from the Latin letter C, which in old Latin represented the sounds of k, and g (in go); its original value being the latter. In Anglo-Saxon words, or Old English before the Norman Conquest, it always has the sound of k. The Latin C was the same letter as the Greek Γ, γ, and came from the Greek alphabet. The Greeks got it from the Phœnicians. The English name of C is from the Latin name ce, and was derived, probably, through the French. Etymologically C is related to g, h, k, q, s (and other sibilant sounds). Examples of these relations are in L. acutus, E. acute, ague; E. acrid, eager, vinegar; L. cornu, E. horn; E. cat, kitten; E. coy, quiet; L. circare, OF. cerchier, E. search.
  • The keynote of the normal or “natural” scale, which has neither flats nor sharps in its signature; also, the third note of the relative minor scale of the same.
  • C after the clef is the mark of common time, in which each measure is a semibreve (four fourths or crotchets); for alla breve time it is written �.
  • The “C clef,” a modification of the letter C, placed on any line of the staff, shows that line to be middle C.
  • As a numeral, C stands for Latin centum or 100, CC for 200, etc.

from The Century Dictionary and Cyclopedia

  • The third letter and second consonant in the English, as in general in the other alphabets derived from the Phenician.
  • As a numeral, in the Roman system, C stands for 100, and is repeated up to CCCC, 400 (followed by D, 500).
  • As a symbol:
  • As an abbreviation, c. or C. stands, in dental formulas of zoölogy (c.), for canine tooth; in United States money (c.), for cent; in thermometer-readings (c.), for centigrade; in French money (c.), for centime; in references (c.), for chapter (or Latin capitulum); in dates, before the number (c.), for Latin circa, about: in meteorology (c.), for cirrus; in a ship's log-book (c.), for cloudy; and in measures of volume (c.), for cubic.
  • An abbreviation of chief justice.
  • An abbreviation of Court and [lowercase] of centimeter.
  • An abbreviation of Court of Appeal;
  • of Court of Arches;
  • of Chancery Appeals;
  • of commercial agent;
  • of Confederate army;
  • of county alderman.
  • An abbreviation of Cape Breton;
  • of Chief Baron (of the Exchequer) (see baron, 2);
  • of the Latin Chirurgiæ Baccalaurens, Bachelor of Surgery: a degree conferred by certain institutions at the end of the third year of a four years' course for the degree of M. D.;
  • of Common Bench;
  • Milit., of confined to barracks.
  • An abbreviation of Caius College;
  • of Catholic clergyman;
  • of cepi corpus;
  • of Chancery cases;
  • of Circuit Court;
  • of City Court;
  • of Civil Code;
  • of Civil Court;
  • of consular clerk;
  • of contra credit;
  • of county clerk;
  • of county councilor;
  • in ceramics, of cream-colored;
  • of Cricket Club;
  • of crown cases; of crown clerk;
  • in Freemasonry, of Celestial Canopy.
  • An abbreviation of the French compte courante (account current);
  • of cubic centimeter.
  • An abbreviation of cathodal duration.
  • An abbreviation of Canada East.
  • An abbreviation of canto fermo, and
  • of chaplain to the forces.
  • An abbreviation of captain-general;
  • of captain of the guard; of coast-guard.
  • An abbreviation of clearing-house.
  • An abbreviation of Commander of the Order of Leopold. See Order of Leopold, under order.
  • An abbreviation of Certified Master
  • of Church Missionary
  • of common meter
  • of corresponding member.
  • An abbreviation of Civil Service
  • of clerk of session
  • of commissary of subsistence
  • of current strength.
  • An abbreviation of Certificated Teacher.
  • An abbreviation of (Gould's) Cordova Zones. See G. C. Z.
  • n. An abbreviation of chief accountant, of controller of accounts, and in Great Britain of chartered accountant.
  • n. An abbreviation of Companion of the Bath. See bath.
  • n. An abbreviation of County Commissioner and of County Court.
  • n. An abbreviation of Civil Engineer.
  • n. An abbreviation
  • n. of commissary-general, and
  • n. of consul-general.
  • n. An abbreviation
  • n. of court-house, very common in the southern United States, and as far north as southern Pennsylvania, as a part of town-names: as, Spottsylvania C. H.; and
  • n. of custom-house.
  • n. An abbreviation of the Latin (New Latin) Chirurgiæ Magister, Master in Surgery.
  • n. An abbreviation of care of, common in addressing letters, etc. Often written c/o
  • n. An abbreviation of Common Pleas and of Court of Probate.
  • n. An abbreviation of the Latin Custos Rotuloruin, Keeper of the Rolls:
  • n. of the Latin Carolus Rex, Charles the King, or of Carolina Regina, Caroline the Queen.
  • n. An abbreviation of Court of Session;
  • n. Clerk of the Signet;
  • n. Custos Sigilli, Keeper of the Seal;
  • n. con sordini (which see).
  • n. The authorized abbreviated form of Imperial Order of the Crown of India. See Order of the Crown, under crown.
  • n. An abbreviation of Commanding Officer
  • n. of Colonial Office.
  • n. An abbreviation of candle-power;
  • n. of Chief Patriarch;
  • n. of Clerk of the Peace;
  • n. of Code of Procedure;
  • n. of Congregatio Passionis, Congregation of the Passion.
  • n. An abbreviation of the Latin Civis Romanus, Roman citizen.
  • n. An abbreviation of Common Version (of the Bible).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. street names for cocaine
  • n. a vitamin found in fresh fruits (especially citrus fruits) and vegetables; prevents scurvy
  • n. a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
  • adj. being ten more than ninety
  • n. ten 10s
  • n. the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second
  • n. the 3rd letter of the Roman alphabet
  • n. a degree on the centigrade scale of temperature
  • n. a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second
  • n. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
  • n. (music) the keynote of the scale of C major
  • n. a general-purpose programing language closely associated with the UNIX operating system
  • n. an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds

Etymologies

Modification of upper case letter C, from Etruscan 𐌂 (C), from Greek Γ (G, "Gamma"), from Phoenician 𐤂 (G, "gimmel"). (Wiktionary)
Lower case form of upper case roman numeral C, a standardization of Ɔ and C because the latter happens to be an abbreviation of Latin centum ("hundred"), from abbreviation of ƆIC, an alternate form of >I<, from tally stick markings resembling Ж (a superimposed X and I), from the practice of designating each tenth X notch with an extra cut. (Wiktionary)
From Latin celeritās ("speed"). (Wiktionary)
Various abbreviations (Wiktionary)
From the symbol c, which is from Latin celeritās ("speed"). (Wiktionary)

Examples

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  • C. Chemical element symbol for Carbon.

    December 16, 2007