グラファイトグラファイトFreq.FrequencyTop 50,000Meanings1noungraphiteRefers 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: 石墨鉛えん筆ぴつの芯しんにはグラファイトが使
