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hair follicle

American  

noun

Anatomy.
  1. a small cavity in the epidermis and corium of the skin, from which a hair develops.


hair follicle British  

noun

  1. a narrow tubular cavity that contains the root of a hair, formed by an infolding of the epidermis and corium of the skin

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of hair follicle

First recorded in 1830–40