Definition of "blackheads" [blackheads]

• Plural form of blackhead. (noun)

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• "Mild acne is characterized largely by open, discolored plugs known as blackheads and by closed bumps or pimples known as whiteheads."
• "Comedones, more commonaly known as blackheads, are one of the most common causes of acne, particularly for those who have oily skin."
• "In Devonshire the peasantry still think that if anyone is troubled with "blackheads," _i. e._, small pimples, or boils, he may be cured by creeping from East to West on the hands and knees nine times beneath an arched [56] bramble bush."