carbon black

Noun
  1. A black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink (synset 114817703)
    is a type of: atomic number 6, c, carbon - an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
    same as: crock, lampblack, smut, soot

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