Definition of follicle in English:


Syllabification: fol·li·cle
Pronunciation: /ˈfälək(ə)l


1 Anatomy A small secretory cavity, sac, or gland, in particular.
More example sentences
  • Associated with the follicle are sebaceous glands and the arrector pili smooth muscle fiber bundle.
  • These drugs penetrate the follicle and sebaceous gland well and decrease colonization by P. acnes.
  • Then, a fluidfilled space develops, to form the antrum of a tertiary follicle.
1.1 (also hair follicle) The sheath of cells and connective tissue that surrounds the root of a hair.
More example sentences
  • But with first-time waxers, the hair follicle is often surrounded by something similar to a whitehead, so when you rip it out it can cause a bit of bleeding.
  • The cells that supply the hair follicle remain active, so the potential for re-growth is always there.
  • Folliculitis presents with a subcorneal pustule in the opening of a hair follicle, with surrounding neutrophilic infiltrate.
1.2 short for Graafian follicle.
More example sentences
  • In most normal human menstrual cycles only one follicle reaches full maturity, to be released at ovulation, on about day 14.
  • The ovary consists of a cortical zone composed of a specialized stroma, which contains follicles with ova.
  • De Graaf, working without the aid of a microscope, made the error of thinking that the fluid-filled follicles were the ova themselves.
2 Botany A dry fruit that is derived from a single carpel and opens on one side only to release its seeds.
More example sentences
  • The fruits produced by these partially emasculated flowers were single follicles and contained relatively few seeds.
  • A fruit may consist of a single follicle or two joined follicles.
  • The three fruits that were formed by flowers in the emasculation treatment were single follicles.


late Middle English: from Latin folliculus 'little bag', diminutive of follis 'bellows'.



Pronunciation: /fəˈlikyələr/
More example sentences
  • Evidence suggests the drug will double the re-mission time of patients diagnosed with follicular non-Hodgkin's lymphoma.
  • It also appears that she is meticulously adept at removing unwanted follicular effluents.
  • I set off clubbing in a confident mood, now colour co-ordinated in both the sartorial and follicular departments.


Pronunciation: /fəˈlikyələt, -ˌlāt/
More example sentences
  • This finely folliculate white structure is loosely surrounded by a thin reticulated black epithelium.


Pronunciation: /fəˈlikyəˌlātid/
More example sentences
  • Electrolysis is fairly effective, but it has to be done one hair at a time, and for a large, densely folliculated area, that calculates roughly to eternity.

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