An epidermal invagination that has as parts a hair follicle, a sebaceous gland, and arrector pili muscle [ http://en.wikipedia.org/wiki/Pilosebaceous_unit https://www.worldcat.org/search?q=bn%3A0123813611 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3130146 ]

Synonyms: fabrica pilosebacea pilo-sebaceous apparatus pilo-sebaceous unit pilosebaceous apparatus

This is just here as a test because I lose it