A chemical compound (usually oxygen) that reacts with a fuel to create heat or power through chemical conversion in processes such as burning or electrochemistry search
A very qualitative term which includes any and all trace gases which have a greater oxidation potential than oxygen (for example O3, peroxyacetyl nitrate, hydrogen peroxide, organic peroxides, NO3, etc ) It is recommended that alternative, more definitive terms be used which define the specific oxidant of interest whenever possible (IUPAC 1997)