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Momentary roughness of the skin caused by erection of the papillae in response to cold or to a strong emotion, such as fear or awe. Also called goose flesh, goose pimples.
Forensics An early postmortem finding caused by rigor mortis of erector pili, commonly seen in drowning victims
Infectious disease Diffuse, finely papular rash of scarlet fever overlying an erythematous base
Substance abuse Horripilation, an early symptom of heroin withdrawal or ‘cold turkey’, which reflects marked sympathetic discharge, seen ± 8 hours after the last dose, and accompanied by yawning, lacrimation, mydriasis, insomnia, hyperactivity of the GI tract, diarrhoea, tachycardia, and hypertension