graph·ite (gr f  t )n. A soft, steel-gray to black, hexagonally crystallized allotrope of carbon with a metallic luster and a greasy feel, used in lead pencils, lubricants, paints, and coatings, that is fabricated into a variety of forms such as molds, bricks, electrodes, crucibles, and rocket nozzles. Also called black lead, plumbago. [Greek graphein, to write; see gerbh- in Indo-European roots + -ite.] gra·phit ic (gr-f tk) adj. |
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