[くろず, kurozu] (n) (1) black vinegar, usu. produced from unpolished rice; (2) charred kelp or shiitake mushrooms ground and mixed with vinegar, used to dress raw fish and vegetables
[せいまいぶあい, seimaibuai] (n) ratio indicating the quantity of polished rice gained from a given quantity of brown rice (nowadays usually expressed as a percent)