hair follicle

noun

: the tubular epithelial sheath that surrounds the lower part of the hair shaft and encloses at the bottom a vascular papilla supplying the growing basal part of the hair with nourishment see hair illustration

Examples of hair follicle in a Sentence

Recent Examples on the Web

Stimulate Hair Follicles: The shampoo restarts the natural hair growth cycle by waking dormant hair follicles. —Ethan Stone, USA TODAY, 13 Mar. 2025

Once the laser locates the hair follicle root, which houses your hair’s stem cells, the laser then converts its light energy to heat, damaging the hair root. —Brigitt Earley, Glamour, 10 Mar. 2025

These sessions, however, have been known to significantly improve hair growth and health while stimulating hair follicles. —Bianca Salonga, Forbes, 5 Mar. 2025

By communicating through biochemical signals with hair follicle stem cells, macrophages create the environment necessary to jump-start hair growth. —Ascend Agency, New York Daily News, 25 Feb. 2025

Word History

First Known Use

1838, in the meaning defined above

Rhymes for hair follicle

• diabolical
• symbolical

Kids Definition

hair follicle

noun

: the tube-shaped sheath surrounding the lower part of a hair shaft

Medical Definition

hair follicle

noun

: the tubular epithelial sheath that surrounds the lower part of the hair shaft and encloses at the bottom a vascular papilla supplying the growing basal part of the hair with nourishment