inhibition

Also contains definition of: degree of inhibition
https://doi.org/10.1351/goldbook.I03034
The decrease in rate of reaction brought about by the addition of a substance inhibitor), by virtue of its effect on the concentration of a reactant, catalyst or reaction intermediate. For example, molecular oxygen and p-benzoquinone can react as 'inhibitors' in many reactions involving radicals as intermediates by virtue of their ability to act as scavengers toward these radicals. If the rate of a reaction in the absence of inhibitor is v 0 and that in the presence of a certain amount of inhibitor is v, the degree of inhibition (i) is given by: \[i=\frac{v_{0}- v}{v_{0}}\]
See also: mechanism-based inhibition
Sources:
PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1125 (https://doi.org/10.1351/pac199466051077)
PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 169 (https://doi.org/10.1351/pac199668010149)