C word meaning and definition

[noun] a narcotic (alkaloid) extracted from coca leaves; used as a surface anesthetic or taken for pleasure; can become addictive
[noun] the 3rd letter of the Roman alphabet
[noun] a general-purpose programing language closely associated with the UNIX operating system
[noun] a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second
[noun] a degree on the Centigrade scale of temperature
[noun] ten 10s
[noun] an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
[noun] one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
[noun] 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
[adjective] of a temperature scale that registers the freezing point of water as 0 degrees C and the boiling point as 100 degrees C under normal atmospheric pressure
[adjective] being ten more than ninety

\C\ (s[=e]) 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 [Gamma], [gamma], and came from the Greek alphabet. The Greeks got it from the Ph[oe]nicians. 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, [sect][sect] 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.

Morse code: -.-.