This term applies to a kinetic study in which the emphasis is on the interpretation of the behaviour in terms of elementary reactions.
See: macroscopic kinetics, molecular kinetics
Source:
PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 173 (https://doi.org/10.1351/pac199668010149)