c /ˈsi/
 字母C


 c
 交流傾印


 c
 直流傾印


 C.
 1. 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.
 Note: See Guide to Pronunciation, §§ 221-228.
 2. Mus. (a) 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. (b) 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 ░. (c) The “C clef,” a modification of the letter C, placed on any line of the staff, shows that line to be middle C.
 3. As a numeral, C stands for Latin centum or 100, CC for 200, etc.
 C spring, a spring in the form of the letter C.

 ◄ ►


 c
      adj : being ten more than ninety [syn: hundred, a hundred, {one
            hundred, 100]
      n 1: a degree on the Centigrade scale of temperature [syn: {degree
           Centigrade, degree Celsius]
      2: 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
         [syn: speed of light, light speed]
      3: one of the four nucleotides used in building DNA; all four
         nucleotides have a common phosphate group and a sugar
         (ribose) [syn: deoxycytidine monophosphate]
      4: a base found in DNA and RNA and derived from pyrimidine;
         pairs with guanine [syn: cytosine]
      5: an abundant nonmetallic tetravalent element occurring in
         three allotropic forms: amorphous carbon and graphite and
         diamond; occurs in all organic compounds [syn: carbon, {atomic
         number 6]
      6: ten 10s [syn: hundred, 100, century, one C, centred]
      7: a unit of electrical charge equal to the amount of charge
         transferred by a current of 1 ampere in 1 second [syn: coulomb,
          ampere-second]
      8: a general-purpose programing language closely associated
         with the UNIX operating system
      9: the 3rd letter of the Roman alphabet
      10: street names for cocaine [syn: coke, blow, nose candy,
           snow]