n. & v.
n. 1 a solid substance left after the gases have been extracted from coal. 2 a residue left after the incomplete combustion of petrol etc.
v.tr. convert (coal) into coke.
[ prob. f. N.Engl. dial. colk core, of unkn. orig. ]
n. & v.
n. 1 a solid substance left after the gases have been extracted from coal. 2 a residue left after the incomplete combustion of petrol etc.
v.tr. convert (coal) into coke.
[ prob. f. N.Engl. dial. colk core, of unkn. orig. ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012