1) (in anatomy) a small secretory cavity, sac, or gland, such as any of the cavities in the ovary in which the ova are formed.
2) (in ophthalmology) any of the smooth translucent elevations of the conjunctiva produced by an immune response. They are usually associated with viral inflammation.
follicular adj.

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  • Follicle — may refer to: *Follicle (anatomy), a small spherical group of cells containing a cavity: ** Dental follicle ** Hair follicle ** Lymph follicle ** Ovarian follicle ** Thyroid follicle *Follicle (fruit) …   Wikipedia

  • 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 — (n.) early 15c., from Fr. follicule or directly from L. folliculus little bag, dim. of follis bellows, inflated ball, from PIE *bhol n , suffixed form of root *bhel (2) to blow, swell (see BOLE (Cf. bole)) …   Etymology dictionary

  • follicle — ► NOUN ▪ a small glandular cavity or pouch, especially that in which the root of a hair develops. DERIVATIVES follicular adjective. ORIGIN Latin folliculus little bag …   English terms dictionary

  • follicle — Generally a small sac or vesicle. Bot. A kind of fruit formed from a single carpel, that splits to release its seeds. Zool. Its use includes: hair follicle, an invagination of the epidermis into the dermis surrounding the hair root; ovarian… …   Dictionary of molecular biology

  • follicle — 1. A more or less spherical mass of cells usually containing a cavity. 2. A crypt or minute cul de sac or lacuna, such as the depression in the skin from which the hair emerges. SYN: folliculus [TA]. [L. folliculus, a small sac, dim. of follis, a …   Medical dictionary

  • follicle — UK [ˈfɒlɪk(ə)l] / US [ˈfɑlɪk(ə)l] noun [countable] Word forms follicle : singular follicle plural follicles medical a very small hole in your skin that contains the root of a hair …   English dictionary

  • follicle —   n. small deep cavity or sac.    ♦ follicular, a.    ♦ folliculate, a. having or enclosed in follicle.    ♦ folliculose,    ♦ folliculous, a. like follicle …   Dictionary of difficult words

  • follicle — An enclosing cluster of cells that protects and nourishes a cell or structure within. Thus a follicle in the ovary contains a developing egg cell, while a hair follicle envelops the root of hair …   Glossary of Biotechnology

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