An investigation of a global reburning-NO reaction, Sigma(ij)C(i)H(j) + NO --> HCN +..., which is a reduction pathway of nitric oxide (NO) by reaction with gaseous hydrocarbons, was conducted. The global reburning-NO rate expression was deduced from a combination of elemental reactions. The global rate expression and its rate constants were then determined by correlating predicted species profiles from simple hydrocarbon flames. This global reburning-NO rate constant can be expressed as 2.7 x 10(6) exp(-18 800/RT) (gmol/cm(3) s). This expression and constants are applicable to atmospheric pressure with an equivalence ratio range of 1.0-2.08 for light hydrocarbon reburning gases (CH4 and C2H4).