三角錐 さんかくすい Meanings Noun triangular pyramid Kanji 三 three. Read as サン. 角 angle. Read as カク. 錐 auger; drill; awl. Read as スイ. Words containing 三角錐 正三角錐 (せいさんかくすい) triangular pyramid with equilateral base Jinuma: Japanese Dictionary · Word lists