[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)
[ひじちょうもく, hijichoumoku] (exp) sharp eyes and ears used for collecting information far and wide; having the acumen and shrewd discernment gained by widely-collected information; being well-versed on a subject; books which broaden our knowledge
[ひゃくせんれんま, hyakusenrenma] (n, adj-no) veteran; (someone) schooled by adversity in many battles; (someone) rich in life's experience gained through much adversity