毛もう

numeric

one-thousandth; 0.03 mm; 0.01 percent; 3.75 mg

Traditional Japanese unit meaning one-thousandth of a base unit. Used in specific contexts: length (0.03 mm, 1/1000 of a 寸), percentage (0.01%, 1/1000 of a 割), and weight (3.75 mg, 1/1000 of a 匁). Rare in modern daily life, but may appear in historical or technical texts.

• 昔むかしの日本にほんでは、長ながさの単たん位いとして毛もうが使つかわれていた。

  In old Japan, 毛 was used as a unit of length.

• この精せい密みつ部ぶ品ひんの公こう差さは数すう毛もう単たん位いだ。

  The tolerance of this precision part is on the order of a few 毛.

noun

old monetary unit (0.0001 yen)

Obsolete currency unit equal to one ten-thousandth of a yen. Used before the modern yen system was fully established. Only encountered in historical financial contexts.

• 江え戸ど時じ代だいの帳ちょう簿ぼには、毛もうという通つう貨か単たん位いが記しるされていることがある。

  In Edo-period ledgers, the currency unit 毛 is sometimes recorded.