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blackhead

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noun black·head \ ˈblak-ˌhed \

Definition of blackhead

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 whitehead
2 :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

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Recent Examples of blackhead from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'blackhead.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of blackhead

circa 1837

BLACKHEAD Defined for English Language Learners

blackhead

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noun

Definition of blackhead for English Language Learners

  • : a small, inflamed area on the skin with a dark spot in the middle

BLACKHEAD Defined for Kids

blackhead

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noun black·head \ ˈblak-ˌhed \

Definition of blackhead for Students

:a darkened bit of oily material blocking a pore in the skin

Medical Dictionary

blackhead

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noun black·head \ ˈblak-ˌhed \

medical Definition of blackhead

1 :a small plug of sebum blocking the duct of a sebaceous gland especially on the face — compare milium
2 :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

Learn More about blackhead

  1. See words that rhyme with blackhead Spanish Central: Translation of blackhead Nglish: Translation of blackhead for Spanish speakers

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