+A **critical exponent** describes how physical quantities diverge or vanish as a system approaches a [Phase Transition](/wiki/phase_transition) point. These dimensionless numbers are universal, revealing the underlying [Universality Class](/wiki/universality_class) of a system, independent of its microscopic details. They are the fingerprints of collective behavior at the brink of profound change.
+## See also
+- [Critical Point](/wiki/critical_point)
+- [Renormalization Group](/wiki/renormalization_group)
+- [Statistical Mechanics](/wiki/statistical_mechanics)
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