hair bulb

noun

Medical Definition of hair bulb

: the bulbous expansion at the base of a hair from which the hair shaft develops

Learn More About hair bulb

Cite this Entry

“Hair bulb.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/hair%20bulb. Accessed 20 Jun. 2021.

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