#blackhead__comedo  a black-tipped plug clogging a pore of the skin
  supertype:  blemish  a mark or flaw that spoils the appearance of something (especially on a person's body); "a facial blemish"
  part of:  tegument__skin__cutis__cuti  a natural protective covering of the body; site of the sense of touch; "your skin is the largest organ of your body"
     part of:  integumentary_system__integumentarysystem  the skin and its appendages

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