RIGOR n.
the skin; a convulsive shuddering or tremor, as in the chill preceeding a fever. Rigor caloris ( Etym: [L., rigor of heat] (Physiol.), a form of rigor mortis induced by heat, as when the muscle of a mammal is heated to about 50ºC. -- Rigor mortis ( Etym: [L. , rigor of death] , death stiffening; the rigidity of the m…