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

Editor’s tip: The serum’s growth factors are said to stimulate hair growth by enhancing blood flow to the hair follicles. —Jenny Berg, Allure, 24 Dec. 2024

The clinic also provides the DHI procedure, which enables direct implantation of hair follicles without needing previous incisions, which appeals to patients who want even more precision. —Kyle J. Russell, USA TODAY, 20 Dec. 2024

Rosemary leaf extract stimulates blood circulation in the scalp, which helps the hair follicles grow. —Kiana Murden, Vogue, 18 Dec. 2024

As a matter of fact, oily scalps can actually lead to scalp acne, which happens when hair follicles on your scalp become blocked with oil and dead skin cells, causing inflammation and infection. —Kristine Thomason, Glamour, 9 Dec. 2024

Word History

First Known Use

1838, in the meaning defined above

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