超硬 ちょうこう Meanings Noun cemented carbide See also: 超硬合金 (ちょうこうごうきん). superhard; ultrahard Kanji 超 exceed. Read as チョウ. 硬 hard. Read as コウ. Words containing 超硬 超硬合金 (ちょうこうごうきん) cemented carbide Jinuma: Japanese Dictionary · Word lists