piloerection pi·lo·e·rec·tion (pī’lō-ĭ-rěk’shən)
Erection of hair.
piloid pi·loid (pī’loid’) adj. Resembling hair; hairlike.
pilojection pi·lo·jec·tion (pī’lə-jěk’shən) n. The process of shooting a stiff mammalian hair into a saccular aneurysm in the brain to produce thrombosis, used in treating the aneurysm.
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.
/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.