Graph·ite n.  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.

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