em quad マイ単語帳に追加

全角

a quad with a square body.

活字のサイズの四角い形。

• since em quad is hard to distinguish from en quad, printers sometimes called it a mutton quad
• em quadisとen quad（全角クワタ）の区別がつけにくくなって以来、印刷業者は時々それをmutton quadと呼ぶ