黒こく鉛えん

こ

く

え

ん

Common wordFreq.FrequencyTop 100,000

Meanings

1

noun

Technical and everyday term for the mineral graphite, used in pencils, lubricants, and industrial applications.

た

潤じゅん

滑かつ

剤ざい

と

し

て

利り

用よう

さ

れる

。

Graphite is used as a lubricant that remains stable even at high temperatures.

鉛えん筆ぴつ
鉛筆 is a pencil, which commonly contains a graphite core, while 黒鉛 is the material graphite itself.
炭たん素そ
炭素 is the chemical element carbon, of which 黒鉛 is one allotrope.

From 黒 (black) + 鉛 (lead), referring to its dark color and historical confusion with lead. The exact historical derivation is uncertain.