Graphite

n.

1.

(Min.) Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead. Graphite battery (Elec.) a voltaic battery consisting of zinc and carbon in sulphuric acid, or other exciting liquid.

Noun

1.

graphite - used as a lubricant and as a moderator in nuclear reactors Synonyms: black lead, plumbago

atomic number 6, black lead, C, carbon, lead, pencil, pencil lead, plumbago