Graphite
Graphite , noun
[Greek gra`fein to write: compare French graphite. See Graphic.]
(Mineralogy) 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.
Collocations (1)
Graphite battery (Electricity) , a voltaic battery consisting of zinc and carbon in sulphuric acid, or other exciting liquid.