Medical Dictionary

piloerection


piloerection

noun pi·lo·erec·tion \ˌpī-lō-i-ˈrek-shən\

Definition of PILOERECTION

:  involuntary erection or bristling of hairs due to a sympathetic reflex usually triggered by cold, shock, or fright or due to a sympathomimetic agent
March 04, 2015
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