7

carcinogen

carbonated /'kaibaneitid; NAmE 'kairb-/ adj. (technical t|t iff) (of a drink 14) containing small bubbles of CARBON DIOXIDE H77I FIZZY

.carbon copy (also carbon) noun 1 a copy of a document, letter, etc. made with carbon paper ( ft

(ft ) % ^ ^ — see also cc 2 a person or thing that is very similar to sb/sth else i$.$J A; She

is a carbon copy of her sister.

'carbon cycle noun [C, U] the processes by which carbon is changed from one form to another within the environment, for example in plants and when wood or oil is burned ffiim ( g *MM^^t

am)

.carbon 'dating (also formal radiocarbon dating) noun a method of calculating the age of very old objects by measuring the amounts of different forms of carbon in them

mmm^-it j

.carbon di'oxide noun [u] (symb COJ a gas breathed out by people and animals from the lungs or produced by burning carbon

car bon ic acid /kai.bDmk 'aesid; NAmE ka:r,ba:mk/ noun [U] (chemistry it) a very weak acid that is formed when carbon dioxide is dissolved in water carboniferous /.kaiba'mfaras; NAmE ,ka:rb-/ adj.

(geology j&) 1 producing or containing coal

) ft) ; # ^ 2 Carboniferous of the

period in the earth’s history when layers of coal were formed underground

car bon ize (BrE also -ise) /'kaibanaiz; NAmE 'kairb-/ verb 1 [V, VN] to become carbon, or to make sth become carbon ( {$ ) tifcit; ( f£ ) Mit 2 [VN] to cover sth with carbon ► carbonization, -isa tion

/.kaibanai'zeijn; NAmE 'kairb-/ noun [U]

.carbon mon'oxide noun [U] (symb CO) a poisonous gas formed when carbon burns partly but not completely. It is produced when petrol/gas is burnt in car engines. — ftft$k

'carbon paper noun thin paper with a dark substance on one side, that is used between two sheets of paper for making copies of written or typed documents %

.car 'boot sale noun (BrE) an outdoor sale where people sell things that they no longer want, using tables or the backs of their cars to put the goods on

() rantn, \m

rfr^

car bor un dum /.kaiba'rAndam; NAmE,kairb-/ noun [U] (chemistry it) a very hard black solid substance, used as an abrasive&W\Vy, ( h!fW044*4 )

carboy /'kaibai; NAmE 'kairboi/ noun a large round bottle, usually protected by an outer frame of wood and used for storing and transporting dangerous liquids (

m) mk, xm

'car bra noun = bra(2)

car bun cle /’kaibAijkl; NAmE 'kairb-/ noun 1 a large painful swelling under the skin ; iff 2a bright red jewel, usually cut into a round shape it If fj : ilft

ft; ai

carburettor (BrE) (NAmE carburetor) /.kaiba'reta(r); NAmE 'kairbareitar/ noun the part of an engine, for example in a car, where petrol/gas and air are mixed together) car bur ize (BrE also -ise) /'kaibjaraiz; 'kaiba-; NAmE 'kairb-/ verb [VN] (technical 7^ igj to add carbon to iron or steel in order to make the surface harder ^

^) m (vtmmmm >

carcass (BrE also less frequent car-case) /'kaikas; NAmE 'kairkas/ noun the dead body of an animal, especially of a large one or of one that is ready for cutting up as meat ibWPit; <

carcinogen /kai'sinad3an; NAmE kair's-/ noun a substance that can cause cancer