(ed.) A sense of chilliness, with contraction of the skin; a convulsive shuddering or tremor, as in the chill preceding a fever.
Rigor caloris (Physiol.), a form of rigor mortis induced by heat, as when the muscle of a mammal is heated to about 50° C.
Rigor mortis, death stiffening; the rigidity of the muscles that occurs at death and lasts till decomposition sets in. It is due to the formation of myosin by the coagulation of the contents of the individual muscle fibers.
... incontinently kill her prey with her delicate bite; she poisons it so as to produce a gradual weakness, which gives the blood-sucker ample time to drain her victim, without the least risk, before the rigor mortis stops ... — The Life of the Spider • J. Henri Fabre
... sentient solemnity, mingled with wrath and terror, glared from the painted eyes,—the lips, slightly parted in a cruel upward curve, seemed about to utter a shriek of menace,—the hair, drooping in black, thick clusters low on the brow, looked wet as with the dews of the rigor mortis,—and to add to the mysterious horror of the whole conception, the distinct outline of a death's-head was seen plainly through the rose-brown flesh- tints. There was no real resemblance in this horrible picture to the radiant and glowing loveliness of the Princess Ziska, yet, at the same time, ... — Ziska - The Problem of a Wicked Soul • Marie Corelli
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