Meaning: [sɪː] 
n. 1. a degree on the centigrade scale of temperature 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 3. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) 4. a base found in DNA and RNA and derived from pyrimidine; pairs with guanine 5. an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds 6. ten 10s 7. a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second 8. a general-purpose programing language closely associated with the UNIX operating system 9. (music) the keynote of the scale of C major 10. the 3rd letter of the Roman alphabet 11. street names for cocaine. adj. being ten more than ninety.
n. 1. a degree on the centigrade scale of temperature 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 3. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose) 4. a base found in DNA and RNA and derived from pyrimidine; pairs with guanine 5. an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds 6. ten 10s 7. a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second 8. a general-purpose programing language closely associated with the UNIX operating system 9. (music) the keynote of the scale of C major 10. the 3rd letter of the Roman alphabet 11. street names for cocaine. adj. being ten more than ninety. 
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(61) This song is in C.
(62) Vitamin C deficiency can ultimately lead to scurvy.
(63) Vitamin C is popularly believed to prevent colds.
(64) A C Milan lost the Italian Cup Final.
(65) The pianist transposed the song into C.
(66) Citrus fruits are a major source of vitamin C.
(67) Vitamin C may help protect against cancer.
(68) Taking vitamin C builds up your resistance to infection.
(69) The temperature rarely drops below 30°C.
(70) Overnight the temperature fell as low as -30°C.
(71) Press "Shift" and type "C".
(72) A squared plus B squared equals C squared.
(73) C comes after B in the alphabet.
(74) A chord of C major with E in the bass is in the 1 st inversion.
(75) The controversy regarding vitamin C is unlikely to be resolved in the near future.
(76) Intravenous drug users are in a high - risk category for hepatitis C.
(77) In all future letters on this subject, please use/quote our reference JW/155/C/1991.
(78) Vitamin C can be taken in capsule or tablet form .
(79) On the B.B.C. you can hear the clock when it is actually striking because microphones are connected to the clock tower.
(80) It never occurred to me that he would become a K.C.
(81) Vitamin C is found in oranges and other citrus fruit.
(82) 'Cat' starts with C/'C'.
(83) Ice liquefies at 0°C.
(84) The Belgian Cup has been won by the favourites F.C. Liege.
(85) There are no sharps or flats in the key of C major.
(86) Potatoes can provide one-third of our daily requirement of vitamin C.
(87) The environmental research institute found that the global average temperature had risen by 1.2°C.
(88) Howe carefully cultivated Daniel C. Roper,(sentence dictionary) the Assistant Postmaster General.
(89) The thermometer registered 32?C.
(90) Oranges contain vitamin C.