Black Lead — synonyms, definition
1. black lead (Noun)
2 synonyms
graphite plumbago
1 definition
black lead (Noun) — Used as a lubricant and as a moderator in nuclear reactors.
3 types of
C atomic number 6 carbon
3 types
lead pencil pencil lead
2. black lead (Verb)
1 definition
black lead (Verb) — Cover with graphite.
1 type of
cover