Follicle, hair

Follicle, hair
: A sac from which a hair grows and into which sebaceous (oil) glands open. The follicle is lined by cells derived from the epidermal (outside) layer of skin. "The human hair follicle is a dynamic structure that generates hair through a complex and exquisitely regulated cycle of growth and remodelling governed by numerous genes" (Siobhán A. Jordan, in Molecular Medicine Today).

Medical dictionary. 2011.

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  • Follicle — Fol li*cle, n. [L. folliculus a small bag, husk, pod, dim of follis bellows, an inflated ball, a leathern money bag, perh. akin to E. bellows: cf. F. follicule. Cf. 2d {Fool}.] 1. (Bot.) A simple podlike pericarp which contains several seeds and… …   The Collaborative International Dictionary of English

  • follicle — [fäl′i kəl] n. [ModL folliculus < L, a small bag, husk, pod, dim. of follis, bellows < IE base * bhel , to blow up, swell > BALL1, BULL1] 1. Anat. a) any small sac, cavity, or gland for excretion or secretion [a hair follicle] b) …   English World dictionary

  • follicle mite — n any of several minute mites of the genus Demodex that are parasitic in the hair follicles * * * either Demodex brevis or D. folliculorum …   Medical dictionary

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