graphitic

graph·ite   (grāf'īt')    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 + -ite1.] gra·phit'ic (grā-fĭt'ĭk) adj.

graphite 

Main Entry: graph·ite
Pronunciation: 'graf-"It
Function: noun
: carbon of a soft black lustrous form that conducts electricity and is used in leadpencils and electrolytic anodes, as a lubricant, and as a moderator in nuclear reactors called also plumbago —gra·phit·ic /gra-'fit-ik/ adjective

graphite   (grāf'īt')  Pronunciation Key  A naturally occurring, steel-gray to black, crystalline form of carbon. The carbon atoms in graphite are strongly bonded together in sheets. Because the bonds between the sheets are weak, other atoms can easily fit between them, causing graphite to be soft and slippery to the touch. Graphite is used in pencils and paints and as a lubricant and electrode. It is also used to control chain reactions in nuclear reactors because of its ability to absorb neutrons.