| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024graph•ite /ˈgræfaɪt/USA pronunciation n. [uncountable]- Mineralogya soft form of carbon occurring in black to dark gray masses, used for pencil leads and as a lubricant.
See -graph-. WordReference Random House Unabridged Dictionary of American English © 2024graph•ite (graf′īt),USA pronunciation n. - Mineralogya very common mineral, soft native carbon, occurring in black to dark-gray foliated masses, with metallic luster and greasy feel: used for pencil leads, as a lubricant, and for making crucibles and other refractories; plumbago;
black lead.
- Greek gráph(ein) to write, draw + German -it -ite1
- German Graphit
- 1790–1800
Collins Concise English Dictionary © HarperCollins Publishers:: graphite /ˈɡræfaɪt/ n - a blackish soft allotropic form of carbon in hexagonal crystalline form: used in pencils, crucibles, and electrodes, as a lubricant, as a moderator in nuclear reactors, and, in a carbon fibre form, as a tough lightweight material for sporting equipment
Etymology: 18th Century: from German Graphit; from Greek graphein to write + -ite1graphitic /ɡrəˈfɪtɪk/ adj |