| pilomotor reflex | (n) reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation, Syn. horripilation, goose skin, gooseflesh, goose bump, goose pimple, goosebump |
| Horripilation | n. [ L. horripilatio, fr. horripilare to bristle; horrere to bristle + pilus the hair: cf. F. horripilation. ] (Med.) A real or fancied bristling of the hair of the head or body, resulting from disease, terror, chilliness, etc. [ 1913 Webster ] |