心しんの臓ぞうMeanings1expression, nounheartdated termDated expression for the heart as an organ; modern Japanese normally uses 心臓. Still encountered in older literature or poetic contexts.See also: 心臓古ふるい医い学がく書しょには「心しんの臓ぞう」という表ひょう現げんがよく出でてくる。The expression 心の臓 often appears in old medical texts.