_{also known as Gibbs states, Gibbs equi-librium measures, or simply Gibbs measures}

Thermodynamic states characterize the macroscopic state of many-body systems (see Bulk matter). It may be defined as corresponding to a particular choice of Thermodynamic potential parameters, that in turn, determine a particular Probability distribution over Microstates, as determined by Statistical physics.

The above, more specifically, defines a pure thermodynamic state.