Graphite
Pronunciation : Graph"ite
Part of Speech : n.
Etymology : [Gr. graphite. See Graphic.] (Min.)
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913