骨棘 こつきょく Also written こっきょく Meanings Noun bone spur; osteophyte Kanji 骨 bone. Read as コツ. 棘 thorn; splinter; spine. Read as キョク. Words containing 骨棘 坐骨棘 (ざこつきょく) ischial spine Jinuma: Japanese Dictionary · Word lists