A small cavity or sac, such as a hair follicle. (noun)
A type of primitive dry fruit produced by certain flowering plants. (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.