Pilomatrixoma
pilomatrixoma pi·lo·ma·trix·o·ma (pī’lō-mā’trĭk-sō’mə)
n.
A benign, often calcified tumor of the skin and the tissue just below the skin, often occurring as a single lesion on the face or upper extremities. Also called Malherbe’s calcifying epithelioma.
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/ˌpaɪləʊˈməʊtə/ adjective 1. (physiol) causing movement of hairs: pilomotor nerves pilomotor pi·lo·mo·tor (pī’lə-mō’tər) adj. Moving the hair. Used of the erector muscles of hairs in the skin and the postganglionic sympathetic nerve fibers that innervate them.
- Pilomotor reflex
pilomotor reflex n. Contraction of the smooth muscle of the skin caused by mild application of a tactile stimulus or by local cooling and resulting in goose bumps.
- Pilon
[pee-lohn] /piˈloʊn/ noun, Southwestern U.S. (chiefly Texas) . 1. something extra; lagniappe. n. 1892, from Mexican Spanish, from Spanish pilón “sugar loaf.”
- Pilonidal
[pahy-luh-nahyd-l] /ˌpaɪ ləˈnaɪd l/ adjective, Pathology. 1. noting or pertaining to a growth of hair in a dermoid cyst or in the deeper layers of the skin. pilonidal pi·lo·ni·dal (pī’lə-nīd’l) adj. Of or relating to a growth of hair in a dermoid cyst or in the deeper layers of the skin.
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pilonidal sinus n. A fistula or pit in the sacral region, communicating with the exterior and containing hair that may act as a foreign body and produce chronic inflammation. Also called pilonidal fistula.