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From The Collaborative International Dictionary of English v.0.48:
Graphite \Graph"ite\, n. [Gr. gra`fein to write: cf. F. graphite. See Graphic.] (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. [1913 Webster] Graphite battery (Elec.), a voltaic battery consisting of zinc and carbon in sulphuric acid, or other exciting liquid. [1913 Webster]