blackhead
noun
black·head
ˈblak-ˌhed 
1
: a small plug of darkened sebum and dead skin cells that fills a pore of the skin especially on the face
called also comedo, open comedo
compare whitehead2
: a destructive disease of turkeys and related birds caused by a protozoan (Histomonas meleagridis) that invades the intestinal ceca and liver
3
: a larval clam or mussel attached to the skin or gills of a freshwater fish
Examples of blackhead in a Sentence
Recent Examples on the Web
That means a course of action that targets everything from blackheads to excess sebum production to sebaceous filaments, the thin threads that tend to pop up on your nose, to even redness, which can cause skin to swell, enhancing the appearance of pores.
—
Diana Tsui, Footwear News, 15 May 2026
After a rinse, the mud revealed perfectly polished skin, relieved of dullness, redness, and clogged pores and blackheads—leaving me glowing from the inside and out.
—Essence, 12 May 2026
Pore Vacuums These claim to remove blackheads, and the satisfaction videos are undeniably compelling.
—Lauren Jarvis-Gibson, Fort Worth Star-Telegram, 8 Apr. 2026
Pore vacuums claim to remove blackheads but mostly clear surface debris.
—Lauren Jarvis-Gibson, Kansas City Star, 8 Apr. 2026
See All Example Sentences for blackhead
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Diana Tsui, Footwear News, 15 May 2026
After a rinse, the mud revealed perfectly polished skin, relieved of dullness, redness, and clogged pores and blackheads—leaving me glowing from the inside and out.
—Essence, 12 May 2026
Pore Vacuums These claim to remove blackheads, and the satisfaction videos are undeniably compelling.
—Lauren Jarvis-Gibson, Fort Worth Star-Telegram, 8 Apr. 2026
Pore vacuums claim to remove blackheads but mostly clear surface debris.
—Lauren Jarvis-Gibson, Kansas City Star, 8 Apr. 2026
See All Example Sentences for blackhead
Cite this Entry
“Blackhead.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blackhead. Accessed 20 May. 2026.
Copy CitationKids Definition
blackhead
noun
black·head
ˈblak-ˌhed
: a small oily bit of material blocking the outlet of a fat-secreting gland in the skin
Medical Definition
blackhead
noun
black·head
ˈblak-ˌhed
1
: a small plug of darkened sebum and dead skin cells that blocks the duct of a sebaceous gland especially on the face
called also comedo, open comedo
compare whitehead2
: a destructive disease of turkeys and related birds caused by a protozoan of the genus Histomonas (H. meleagridis) that invades the intestinal ceca and liver
called also enterohepatitis, histomoniasis, infectious enterohepatitis
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