Definition: A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel.
pyrolytic carbon [ LTIC,low temperature isotropic carbon ] material used in aortic Bjork Shiley & St. Jude heart valve prosthesis; hydrocarbon cracked at temp ''below about 1500 degrees C'' and is called low-temperature-isotropic or pyrolytic carbon; carbon-g