Anatomy A crypt or minute cul-de-sac or lacuna, such as the depression in the skin from which the hair emerges. (noun)
Anatomy An ovarian follicle. (noun)
Anatomy A spherical mass of cells usually containing a cavity. (noun)
Botany A dry, single-chambered fruit that splits along only one seam to release its seeds, as in larkspur and milkweed. (noun)
Examples of word follicle
Once the follicle is heavily damaged or destroyed, it no longer has the ability to grow hair.
Another accessory organ of the integument associated with the hair follicle is the sebaceous gland.
The hair-growth cycle consists of growth, regression (the hair falls out, destroying the lower part of the follicle), rest (the follicle is dormant), and re-initiation of growth (the follicle repairs itself and grows a new hair).
An older, commonly used egg-supply marker known as follicle-stimulating hormone, or FSH, also measured through a blood test, can be taken only on days two, three or four of a menstrual cycle, may be affected by birth-control pills, and has greater variability.
As the child nears puberty, a gland in the brain called the pituitary gland increases the secretion of a hormone called follicle-stimulating hormone FSH.