Moving the hair; denoting the arrectores pilorum muscles of the skin and the postganglionic sympathetic nerve fibers innervating these small smooth muscles. [pilo- + L. motor, mover]
* * *
pi·lo·mo·tor .pī-lə-'mōt-ər adj moving or tending to cause movement of the hairs of the skin <\pilomotor nerves> <\pilomotor erection>
* * *
pi·lo·mo·tor (pi″lo-moґtər) [pilo- + motor] pertaining to the arrector pili muscles; see also horripilation.Medical dictionary. 2011.