arrector pili muscle


arrector pi·​li muscle -ˈpī-ˌlī- How to pronounce arrector pili muscle (audio) -ˈpil-ē- How to pronounce arrector pili muscle (audio)
: one of the small fan-shaped smooth muscles associated with the base of each hair that contract when the body surface is chilled and erect the hairs, compress an oil gland above each muscle, and produce the appearance of goose bumps

called also erector pili muscle, pilomotor muscle

Dictionary Entries Near arrector pili muscle

Cite this Entry

“Arrector pili muscle.” Medical Dictionary, Merriam-Webster, Accessed 23 May. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!