em rule

alt-of alternative

(typography) Alternative form of em dash

Japanese Meaning

（タイポグラフィー）エムダッシュの代替形

In typesetting, the em rule is often used instead of a colon or parentheses to set off a phrase.

組版では、句を区切るためにコロンや丸括弧の代わりにエムダッシュの別形がよく用いられる。

Sense（1）

(typography) Alternative form of em dash