玉髄 ぎょくずい Meanings Noun chalcedony Kanji 玉 ball. Read as ギョク. 髄 marrow. Read as ズイ. Words containing 玉髄 血玉髄 (けつぎょくずい) bloodstone 緑玉髄 (りょくぎょくずい) chrysoprase 紅玉髄 (べにぎょくずい) carnelian Word lists Mineralogy Jinuma: Japanese Dictionary · Word lists