Origin of graphiteGerman graphit from Classical Greek graphein, to write (see graphic): from its use as writing material
a very soft, black, hexagonal mineral of pure carbon, formed in thin plates and found in metamorphic rocks: used in making electrodes, paints, the lead of pencils, etc.
A soft crystalline allotrope of carbon, composed of graphene layers, having a steel-gray to black metallic luster and a greasy feel, used in lead pencils, lubricants, paints and coatings, and fabricated into a variety of forms such as molds, bricks, electrodes, crucibles, and rocket nozzles. Also called black lead . Also called plumbago .
Origin of graphiteGreek graphein to write ; see gerbh- in Indo-European roots. -ite 1
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.
- 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 and in "lead" pencils.
- Short for graphite-reinforced plastic, a composite plastic made with graphite fibers noted for light weight strength and stiffness.
- Modern tennis racquets are made of graphite, fibreglass and other man-made materials.
- A grey colour.
From German Graphit (A.G. Werner 1789), from Ancient Greek γράφω (graphō, “I write”).
- The massive graphite is very easily machined and is widely used for electrodes, dynamo brushes, lead pencils and the like.
- The " muffle," a graphite cylinder 6 in.
- YOXv13Sos, lead, and was originally employed to denote many substances containing or resembling lead; ultimately the term was applied to graphite and to molybdenum sulphide.
- Graphite and some silver ores have also been found.
- Wotton's letter of 1620, already noted, was not published till 1651 (Reliquiae Wottonianae, p. 141), but in 1658 a description of Kepler's portable tent camera for sketching, taken from it, was published in a work called Graphite, or the most excellent Art of Painting, but no mention is made of Kepler.