彫心鏤骨 ちょうしんるこつ Meanings Noun, する verb, Intransitive laborious work; lucubration; lucubrations; painstakingly polishing a piece of literary work Kanji 彫 carve. Read as チョウ. 心 heart. Read as シン. 鏤 inlay; set; mount 骨 bone. Read as コツ. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists