piloerection
noun
pi·lo·erec·tion
| \ ˌpī-lō-i-ˈrek-shən
\
\
Definition of piloerection
: erection or bristling of hairs due to the involuntary contraction of small muscles at the base of hair follicles that occurs as a reflexive response of the sympathetic nervous system especially to cold, shock, or fright
Note: Piloerection may also occur as a side effect from the use of a sympathomimetic drug (such as phenylephrine) or as a symptom of opioid withdrawal.
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More Definitions for piloerection
piloerection
noun
pi·lo·erec·tion
| \ ˌpī-lō-i-ˈrek-shən
\
\
Medical Definition of piloerection
: erection or bristling of hairs due to the involuntary contraction of small muscles at the base of hair follicles that occurs as a reflexive response of the sympathetic nervous system especially to cold, shock, or fright
Note: Piloerection may also occur as a side effect from the use of a sympathomimetic drug (as phenylephrine) or as a symptom of opioid withdrawal.