noun An allotrope of carbon, consisting of planes of carbon atoms arranged in hexagonal arrays with the planes stacked loosely, that is used as a dry lubricant, in "lead" pencils, and as a moderator in some nuclear reactors.
noun Graphite-reinforced plastic, a composite plastic made with graphite fibers noted for lightweight strength and stiffness.
Modern tennis racquets are made of graphite, fibreglass and other man-made materials.
noun A grey colour, resembling graphite or the marks made with a graphite pencil.