The overall process is said to occur by consecutive steps.
Source: PAC, 1981, 53, 753. (Symbolism and Terminology in Chemical Kinetics) on page 760 [Terms] [Paper]
Citation: 'consecutive reactions' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.C01276 RISBibTexEndNote