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graphite
Definitions
[ˈɡrafʌɪt], (Noun)
Definitions:
- a grey crystalline allotropic form of carbon which occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors
Phrases:
Origin
:
late 18th century: coined in German (Graphit), from Greek graphein ‘write’ (because of its use as pencil ‘lead’)
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definition by Oxford Dictionaries