carbon black

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
• Syn:
lampblack, soot, smut, crock
• Derivationally related forms:
smut (for: smut), sooty (for: soot), soot (for: soot)
• Hypernyms:
carbon, C, atomic number 6