noun
Refers to the mineral form of carbon used in pencils, lubricants, and as a moderator in nuclear reactors. The synonym 石墨 (せきぼく) is less common in everyday speech.
See also: 石墨
鉛筆の芯にはグラファイトが使われている。
Graphite is used in pencil leads.
石墨 is a less common kanji term for graphite, mainly used in technical or older contexts.
Borrowed from English 'graphite', ultimately from German 'Graphit', coined in the late 18th century from Greek 'graphein' (to write).