black lead | sense examples, Usage and Definition from wordnet dictionary online

Noun black lead has 1 sense

graphite, black lead, plumbago - used as a lubricant and as a moderator in nuclear reactors
--₁ is a kind of carbon, C, atomic number 6
--₁ has particulars: lead, pencil lead; pencil

,Verb black lead has 1 sense

blacklead - cover with graphite
--₁ is one way to cover
Sample sentence:
Somebody ----s something