IUPAC definition : A substance that diminishes the rate of a chemical reaction; the process is called
inhibition. Inhibitors are sometimes called negative catalysts, but since the action
of an inhibitor is fundamentally different from that of a catalyst, this terminology
is discouraged. In contrast to a catalyst, an inhibitor may be consumed during the
course of a reaction. In enzyme-catalysed reactions an inhibitor frequently acts by
binding to the enzyme, in which case it may be called an enzyme inhibitor.;
A substance that diminishes the rate of a chemical reaction; the process is called
inhibition. Inhibitors are sometimes called negative catalysts, but since the action
of an inhibitor is fundamentally different from that of a catalyst, this terminology
is discouraged. In contrast to a catalyst, an inhibitor may be consumed during the
course of a reaction. In enzyme-catalysed reactions an inhibitor frequently acts by
binding to the enzyme, in which case it may be called an enzyme inhibitor.